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Biologi Kertas 120101 1/4 jam

PEPERIKSAAN SELARAS AKHIR TAHUN TINGKATAN 4

MATA PELAJARAN SAINS DAN MATEMATIKSEKOLAH-SEKOLAH MENENGAH NEGERI MELAKA

2010

Kelolaan:

PEJABAT PELAJARAN DAERAHMELAKA TENGAH

BIOLOGI

KERTAS 1

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini mengandungi soalan yang terdiri daripada 50 soalan objektif.Jawab semua soalan.

2. Rajah yang mengiringi soalan dimaksudkan untuk memberi maklumat yangberguna bagi menjawab soalan. Rajah tidak dilukis mengikut skala kecualidinyatakan sebaliknya.

3. Penggunaan kalkulator saintifik yang tidak boleh diprogramkan adalahdibenarkan.

Kertas soalan ini mengandungi 30 halaman bercetak .

[Lihat sebelah]

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Instruction: Forquestion 1 to question 50, each question is followed by fouralternative answers A, B, C orD. Choose one correct answer for each question.

1. Which of the following is a type of connective tissue?Antara yang berikut, yang manakah merupakan tisu penghubung?

2. Diagram 1 shows an organelle.Rajah 1 menunjukkan satu organel.

Diagram 1/Rajah 1

What is the main function of this organelle?Apakah fungsi utama organel ini?

A PhotosynthesisFotosintesis

B DNA replicationReplikasi DNA

C Production of energyPenghasilan tenaga

D Production of enzymesPenghasilan enzim

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3. Diagram 2 shows an aquatic organism.[Rajah 2 menunjukkan organisma akuatik]

Diagram 2Rajah2

What is the process of substances moving in and out of the organismas shown by the

arrows?

[Apakah proses pergerakan keluar-masuk bahan pada organisma seperti yang ditunjukkan

oleh anak panah.]

A Diffusion[Resapan]

B Osmosis[Osmosis]

C Active transport[Pengangkutan aktif]

D Facilitated diffusion[Resapan berbantu]

4. Diagram 3 shows three types of movement, X, Y and Z, across a plasma membrane?Rajah 3 menunjukkan tiga jenis pergerakan X, Y dan Z melalui membrane plasma.

Diagram 3/Rajah 3

Carbon dioxide[Karbon dioksida]

Oxygen[Oksigen]

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What are X, Y dan Z?Apakah X, Y dan Z?

X Y Z

A Active transportPengangkutan

aktif

Osmosisosmosis

DiffusionResapan

B Active transport

Pengangkutanaktif

Passive transport

PengangkutanPasif

Diffusion

Resapan

C FacilitatedtransportResapanberbantu

Active transportPengangkutan

aktif

DiffusionResapan

D FacilitatedtransportResapanberbantu

Active transportPengangkutan

aktif

OsmosisOsmosis

5. Diagram 4 is a graph which shows the changes in mass of a potato strip in distilled waterat 20

0C.

Rajah 4 ialah graf yang menunjukkan perubahan dalam jisism jalur ubi kentang dalam airsuling pada suhu 20

0C.

Diagram 4/Rajah 4

Which of the following is a correct description of the potato cells between hour 2 and hour3?Pernyataan manakah adalah betul tentang penerangan sel-sel ubi kentang antara jam 2dan jam 3 ?

A The cells were turgid.Sel-sel adalah turgid.

B The cell vacuole burst.Vokuol sel pecah.

C The cell wall was impermeable to waterDinding sel adalah tidak telap kepada air

D The cell membrane was fully permeableMembran sel adalah telap sepenuhnya.

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6. Diagram 5 shows an experiment which is carried out to study diffusion through a semipermeable membrane.Rajah 5 menunjukkan eksperimen yang dilakukan untuk mengkaji resapan melaluimembrane separa telap.

DIAGRAM ?

DIAGRAM 17

Diagram 5

What are Q and R?

Apakah Q dan R?Q R

A Sucrose solution 30% Distilled water

B Sucrose solution 50% Sucrose solution 30%

C Sucrose solution 30% Sucrose solution 30%

D Sucrose solution 10% Sucrose solution 30%

7. Diagram 6 shows the structure of plasma membraneRajah 6 menunjukkan struktur membrane plasma

Diagram 6/Rajah 6

What is structure X?Apakah struktur X?

A Glycoprotein C Peripheral proteinGlikoprotein Protein periferal

B Cholesterol tail D CytoskeletonEkor kolesterol Sitoskeleton

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8. Which organelle that contains the enzymes needed to synthesise ATP in the presence ofoxygen?

Organel manakah yang mengandungi enzim yang diperlukan untuk mensintesis ATPdalam kehadiran oksigen?

A S C UB T D V

9. Diagram 7 shows epithelial cells that are found in various parts of the lung andassociated structures. Which list represents the correct combinations of these?

Rajah 7 menunjukkan epithelial sel yang didapati di pelbagai bahagian peparu dan

struktur yang berkaitan. Senarai yang manakah mewakili combinasi yang betul?

Diagram 7/Rajah 7

P Q R

A TracheaTrakea

Pulmonary veinVena pulmonary

IntestineUsus

B AlveolusAlveolus

IntestineUsus

SkinKulit

C TracheaTrakea

SkinKulit

Pulmonary veinVena pulmonary

D SkinKulit

LungParu-paru

TracheaTrakea

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10. Which diagram best repserents the levels of organization in the human body?Rajah manakah paling sesuai mewakili aras organisasi dalam badan manusia?

11. Which of the following represents the secondary structure of protein?Antara yang berikut, yang manakah mewakili struktur sekunder protein?

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12. Which of the following are true about protein?[Antara berikut yang manakah benar tentang protein?]

I Formation of polypeptides is a condensation reaction[Pembentukkan polipeptida adalah suatu tindakan kondensasi]

II Breakdown of polypeptides is hydrolysis reaction[Penguraian polipeptida adalah suatu tindakan tindakan hidrolisis]

III Essential amino acids cannot be synthesized by animal cells.[ Asid amino perlu tidak boleh disintesis oleh sel haiwan]

IV Non-essential amino acid can be synthesized by animal cells.[Asid amino tidak perlu dapat disintesiskan oleh sel haiwan]

13 Which enzyme, substrate and condition are needed for the digestion of food in the stomach?Yang manakah enzim, substrat dan keadaan yang diperlukan untuk pencernaan makanandalam perut?

Enzyme Substrate Conditions

A Amylase Starch Acid

B Amylase Starch Alkaline

C Pepsin Protein Acid

D Protease protein Acid

A I and II only[I and II sahaja]

C III and IV only[III dan IV sahaja]

B I,II and III only[I , II dan III sahaja]

D I,II,III and IV only[I,II, III dan IV sahaja]

14 The following statements are about the use of a specific enzyme in industries and daily lives.Berikut adalah kenyataan tentang kegunaan spesifik enzim dalam industri dan kehidupanharian.

What is the enzyme used?Apakah enzim tersebut?A Amylase C Protease

B Lipase D Zymase

o Tenderising meatMelembutkan daging

o Remove fish skin

Mengeluarkan kulit ikano Extracting fur from animal skin

Mengeluarkan rambut daripada kulit haiwan

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15. Four different food tests were carried out on a food sample.

The results are shown in Table 1.

[Empat ujian makanan yang berbeza telah dijalankan keatas suatu sampel makanan.

Keputusan ditunjukkan dalam Jadual 1]

Test tube[Tabung uji]

Test carried out[Ujian yang dijalankan]

Observation[Pemerhatian]

1 Biuret test[Ujian Biuret]

Purple solution[Larutan ungu]

2 Benedict test[Ujian benedict]

Blue solution[Larutan biru]

3 Iodine test[Ujian iodin]

Dark blue[Biru gelap]

4 DCPIP test

[Ujian DCPIP]

Colourless solution

[Larutan tidak berwarna]

Table 1[Jadual 1]

The food sample contains

[Makanan tersebut mengandungi]

I protein[protein]

II starch

[kanji]

III vitamin C[vitamin C]

IV reducing sugar [Gula penurun]

A I and IV only[I dan IV sahaja]

C I, II, III and IV[I,II, III dan IV]

B II and III only[II dan III sahaja] D I, II and III only[I, II dan III sahaja]

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16. Diagram 8 shows a stage during meiosis in an animal cell.[Rajah 8 menunjukkan suatu peringkat meiosis dalam sel haiwan]

Diagram 5[Rajah5]

Which of the statement about the cell is true?[Manakah diantara pernyataan berikut benar tentang sel tersebut?]

A The cell is found in the liver.[Sel tersebut terdapat di dalam hati]

B The cell has four chromosomes at interphase.[Sel tersebut mempunyai empat kromosom semasa interfasa]

C The cell produces diploid daughter cells at the end of the process.[Sel tersebut menghasilkan sel anak diploid di akhir proses.]

D The cell produces two daugther cells at the end of the process.[Sel tersebut menghasilkan dua sel anak di akhir proses.]

17. Diagram 9 shows metaphase 1 in an animal cell.[Rajah 9 menunjukkan metafasa 1 dalam sel haiwan]

Diagram 6[Rajah 6]

How many chromosomes are there in the daughter cell of this division?[Berapakah bilangan kromosom dalam sel anak selepas pembahagian ini?]

A 2 C 8

B 4 D 16

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18. Diagram 10 shows the process of cloning a sheep.[Rajah 10 menunjukkan proses pengklonan kambing biri-biri]

Diagram 7[Rajah7]

Which of the following is the offspring X?[Antara yang berikut yang manakah anak X?]

A. C.

B D.

Offspring X[Anak X]

Diploid cell[Sel diploid] Ovum

[Ovum]

Embryo[Embrio]

Surrogate mother[Ibu tumpang]

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19 Diagram 11 shows the phases in a cell cycle.Rajah 11 menunjukkan fasa-fasa dalam satu kitar sel

Diagram 11

Which of the following represents V?Manakah yang berikut mewakili V?

A mitosis C stage SB cytokinesis D stage G1

20. Which of the following is an autotrophic organism?[Antara berikut yang manakah organisma autotrofik?]

A Cat

[Kucing]

B Amoeba[Amoeba]

C Mushroom[Cendawan]

D Hibiscus plant[Pokok bunga raya]

21 Bleeding gums is due to the deficiency of[Gusi berdarah disebabkan oleh kekurangan]

A iron[besi]

B calcium[kalsium]

C vitamin B[vitamin B]

D vitamin C

[vitamin C]

Yhase

X phase X hase

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22 Which of the following carbohydrates is a disaccharide?[Antara karbohidrat berikut yang manakah disakarida?]

A Fructose[Fruktosa]

C Galactose[Galaktosa]

B Glucose

[Glukosa]

D Sucrose

[Sukrosa]

23 Diagram 12 shows the human digestive system.[Rajah 12 menunjukkan sistem pencernaan manusia]

Diagram 12

[Rajah 12]

Which of the following organs A, B,C or D secrete hydrochloric acid?[Antara organ A, B, C atau D berikut ,yang manakah merembeskan asid hidroklorik?]

24. Which adaptations help the villi to absorb mineral salts effectively?[Penyesuaian yang manakah membantu vilus menyerap garam mineral secara berkesan?]

I Large in number.[Bilangan yang banyak]

II Thin epithelial walls.

[Dinding epithelium yang nipis]

III Lacteal in every villus.[Lakteal pada setiap vilus]

IV Dense blood capillaries.[Kapilari darah yang padat]

A I and II only.[I dan II sahaja]

C I, II and IV only[I,II dan IV sahaja]

B II and III only[II dan III sahaja]

D I, III and IV only[I, II dan IV sahaja]

A

B

C

D

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25. Diagram 13 shows the products of a method of food production.[Rajah 13 menunjukkan hasil daripada suatu kaedah penghasilan makanan.]

Diagram 13/[Rajah13]Which of the following are true about the method?[Antara berikut yang manakah benar tentang kaedah tersebut?]

I Discovered by Louis Pasteur.[Ditemui oleh Louis Pasteur]

II Foods can be preserved over a year.[Makanan boleh disimpan lebih daripada setahun]

III Can destroy enzymes and kill microorganisms[Boleh memusnahkan enzim dan membunuh mikroorganisma]

IV Used only for preservation of fish and vegetables[Hanya digunakan untuk mengawet ikan dan sayur-sayuran]

A I and II only.[I dan II sahaja]

C II and IV only[II dan IV sahaja]

B II and III only[II dan III sahaja]

D I, III and IV only[I, II dan IV sahaja]

26. Which of the following statements is true about essential amino acids?Antara pernyataan berikut yang manakah benartentang asid amino perlu?

I

II

III

IV

Cannot be synthesised by the bodyTidak dapat dihasilkan oleh badan

Constitute the majority of total amino acidsTerdiri daripada hampir kesemua amino asid

There are nine essential amino acids in totalTerdapat sembilan asid amino perlu semuanya

Main sources are meat, milk and soya beansSumber utamanya adalah daging, susu dan kacang soya

A

B

C

D

I and IV onlyI dan IV sahaja

II and III onlyII dan III sahaja

I, III and IV onlyI, III dan IV sahaja

I, II, III and IV

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27. Diagram 14 shows the adaptive characteristic of part of a digestive system involved in foodabsorption.

Rajah 14 menunjukkan ciri penyesuaian pada sistem pencernaan yang terlibat dalampenyerapan makanan.

Diagram 14What is structure X?

Apakah struktur X

28.

A

B

C

D

LactealLaktil

MicrovillusMikrovilus

Lymph vesselSalur limfa\

Intestinal glandKelenjar intestinal

Diagram 15 shows a cross section of a leaf .[Rajah 15 menunjukkan keratan rentas sehelai daun.]

Diagram 15[Rajah 15]

What is the adaptation of the structure X to optimize photosynthesis?

X

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[Apakah penyesuaian yang terdapat pada struktur X untuk mengoptimumkanfotosintesis ?

A Have a lot of chloroplast.[Mempunyai banyak kloroplas]

B Large air spaces between cell.

[Ruang udara yang besar antara sel]

C Waterproof layer on the surface.[Lapisan kalis air pada permukaan]

D Cylindrical cell arranged end to end in long row.[Sel berbentuk selindar tersusun hujung ke hujung dalam barisan panjang]

29. Diagram 16 shows the relationship between two important stages in photosynthesis.Rajah 16 di bawah menunjukkan hubungan antara dua peringkat dalam fotosintesis.

Diagram 16

What are stage A and stage B?Apakah peringkat A dan peringkat B?

A

B

C

D

Early stage and final stagePeringkat awal dan peringkat akhir

Light stage and dark stagePeringkat cahaya dan peringkat gelap

Decomposition stage and construction stagePeringkat penguraian dan peringkat pembinaan

Photolysis of water stage and synthesis of water stagePeringkat fotolisis air dan peringkat sintesis air

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30. Diagram 17 shows a respiratory system.[Rajah 17 menunjukkan sistem respirasi.]

Diagram 17[Rajah 17]

Which organism has the system?[Oraganisma yang manakah mempunyai sistem tersebut]

A Snail[Siput]

C Housefly[Lalat]

B Frog[Katak]

D Earthworm[Cacing tanah]

31. Which of the following statements explain the difference between aerobic respiration andanaerobic respiration?

Antara pernyataan berikut yang manakah menerangkan tentang perbezaan antararespirasi aerobik dan respirasi anaerobik?

A

B

C

D

Aerobic respiration does not involve the use of oxygen whereas anaerobic respirationrequires the use of oxygen.Respirasi aerobik tidak melibatkan penggunaan oksigen manakala respirasi

anaerobik memerlukan oksigen.

Aerobic respiration releases less energy whereas anaerobic respiration releases moreenergy.Respirasi aerobik membebaskan kurang tenaga manakala respirasi anaerobikmembebaskan lebih banyak tenaga.

Anaerobic respiration produces lactic acid in plant cells and ethanol and carbon dioxidein animal cells.Respirasi anaerobik menghasilkan asid laktik dalam sel tumbuhan manakala etanoldan karbon dioksida dalam sel haiwan.

Aerobic respiration occurs in mitochondrion while anaerobic respiration occurs in thecytoplasm.Respirasi aerobik berlaku dalam mitokondrion manakala respirasi anaerobik berlakudalam sitoplasma.

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32. Diagram 18 shows the cross section of an alveolus and the surrounding blood capillaryRajah 18 di atas menunjukkan keratan rentas alveolus yang dikelilingi oleh kapilari darah

.

What is the concentration of oxygen at X, Y and Z?.Apa kepekatan oksigen pada X, Y dan Z?

A

B

C

D

XLow

Rendah

LowRendah

HighTinggi

High

Tinggi

YHigh

Tinggi

HighTinggi

LowRendah

Low

Rendah

ZLow

Rendah

HighTinggi

LowRendah

High

Tinggi

33. The following equation shows the relationship between the process of photosynthesis andcell respirationPersamaan berikut menunjukkan hubungan di antara proses fotosintesis dan respirasi sel

Which of the following is possibly represented by X and Y?Yang manakah yang mungkin mewakili X dan Y?

A

B

XGlucose, oxygenGlukosa,oksigen

Glucose, carbon dioxide

Glukosa, karbon dioksida

YGlucose, carbon dioxideGlukosa, karbon dioksida

Glucose, oxygen

Glukosa, oksigen

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34 Diagram 19 shows an owl with a rat.Rajah 19 menunjukkan seekor burung hantu dengan seekor tikus.

Diagram 19Rajah 19

What is the type of interaction between the organisms ?Apakah jenis interaksi antara organism organism itu ?

A ParasitismParasitisme

B Mutualism

MutualismeC Commensalism

KomensalismeD Prey - predator

Mangsa - pemangsa

35. Diagram 20 shows an interaction between two living organisms.Rajah 20 menunjukkan interaksi antara dua organisma hidup.

Diagram 13Rajah 13

Which of the following is true about organism X ?

C

D

Starch, energyKanji, tenaga

Glucose, oxygenGlukosa, oksigen

Carbon dioxideKarbon dioksida

Water, carbon dioxide,ATP energyAir, karbon dioksida, tenaga ATP

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Antara berikut, yang manakah benartentang organisma X ?A Organism X is epiphyte

Organisma X ialah epifitB Organism X is parasite

Organisma X ialah parasitC Organism X harms organism Y

Organisma X merugikan organisma YD Organism X absorbs nutrients from organism Y

Organsima X menyerap nutrien daripada organisma Y

36. Diagram 21 shows a pyramid of numbersRajah 21 menunjukkan satu piramid nombor.

Diagram 14

Rajah 21

Which organism occupies the second trophic level ?Organisma manakah yang menduduki aras trof kedua ?

A B

C D

1st

trophic level

Aras trof 1

2nd

trophic level

Aras tro 2

3r

trophic level

Aras trof 3

4t

trophic level

Aras trof 4

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37. Diagram 22 shows the organisms P and Q.Rajah 22 menunjukkan organisma P dan Q.

Diagram 22Rajah 22

What is the feeding method for P and Q?Apakah kaedah pemakanan bagi P dan Q?

P Q

A AutotropicAutotropik

ParasiticParasitik

B SaprophyticSaprofitik

ParasiticParasitik

C HolozoicHolozoik

SaprophyticSaprofitici

D ParasiticParasitik

HeterotropicHeterotropik

38 Diagram 23 shows a food web in a bushRajah 23 menunjukkan satu jaringan makanan di kawasan semak..

Diagram 23Rajah 23

What is the role of the bird ?

snakeular

frogkatak

grasshopperbelalang

planttumbuhan

caterpillarulat beluncas

birdburung

QP

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Apakah peranan burung ?

A ProducerPengeluar

B Tertiary consumerPengguna tertier

C Primary consumerPengguna primer

D Secondary consumerPengguna sekunder

39. Diagram 24 shows three different zones at a mangrove swamp.Rajah 24 menunjukkan tiga zon yang berbeza di paya bakau.

Diagram 24Rajah 24

Which types of roots are correctly matched to the dominant mangrove plant in the zones P,Q, and R?

Yang manakah jenis akar dipadankan dengan betul kepada pokok bakau yang dominan dizon P, Qdan R?

Zon P Zon Q Zon R

A

B

Q

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C

D

40. Diagram 25 shows two organism living together.Rajah 25 menunjukkan dua organisma yang hidup bersama.

Which of the following describe the relationship between a remora fish (Y ) anda shark ( X )?Manakah antara berikut menerangkan perhubungan antara ikan remora (Y) dan jerung(X)?

Shark (X) Remora fish (Y)

A Host

Perumah

Endoparasites

EndoparasitB Epizoic

EpizoitHostPerumah

C HostPerumah

CommensalKomensal

D EctoparasiteEktoparasit

HostPerumaH

Diagram 25Rajah 25

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41. Diagram 26 shows a type of plant in the mangrove swamp.Rajah 26 menunjukkan sejenis tumbuhan paya bakau.

What is structure P ?Apakah struktur P?

A Prop rootsAkar jangkang

C PneumatophorePneumatofor

B Vivipary seedsBiji benih vivipari

D Succulent leavesDaun sukulen

42. Table 2 shows the result of a field study to estimate the population of garden snails in a vegetablefarmJadual 2 menunjukkan keputusan kajian lapangan untuk menganggar saiz populasi siput kebun didalam sebuah ladang sayur.

SampleNumber of garden snails capturedBilangan siput babi yang ditangkap

FirstPertama 280

SecondKedua

70 marked70 bertanda

80 unmarked80 tidak bertanda

Table 2Jadual 2

What is the estimated population size of the snail ?Berapakah anggaran saiz populasi siput babi berkenaan?

A 6 C 225B 37 D 600

Diagram 26Rajah 26

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43. Diagram 27 shows parts of nitrogen cycle in the atmosphere.Rajah 27 menunjukkan sebahagian kitar nitrogen di atmosfera.

Diagram 27Rajah 27

What is bacteria X?Apakah bakteria X?

A Nitrogen- fixing bacteriaBakteria pengikat nitrogen

B Denitrifying bacteriaBakteria pendenitratan

C Purifying bacteriaBakteria pengurai

D Nitrifying bacteriaBakteria penitritan

44. Table 3 shows the time taken for methylene blue solution to decolourise in three water samples of P,Q and R.Jadual 3 menunjukkan masa yang diambil untuk larutan biru metilena menjadi tidak berwarna bagitiga sampel air iaitu P, Q dan R

Water sampleSampel air

P Q R

Time taken for methyleneblue solution todecolouriseMasa untuk metilena birumenjadi tidak berwarna

8 hours8 jam

3 hours3 jam

5 hours5 jam

Table 3Jadual 3

Which of the following is the sample water for P, Q and R ?Manakah yang berikut mungkin adalah sampel air P, Q dan R ?

P Q R

A Pond waterAir kolam

Drain waterAir longkang

Tap waterAir paip

B Drain water

Air longkang

Tap water

Air paip

Pond water

Air kolam

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C Drain water Air longkang

Pond waterAir kolam

Tap waterAir paip

D Tap water Air paip

Drain waterAir longkang

Pond waterAir kolam

45. The CFCs in the air condition and refrigerator have been replaced by HCFC.Which of the following statement explains the reason for the replacement?

Kandungan CFC di dalam penghawa dingin dan peti sejuk telah digantikan penggunaannya denganHCFC.Di antara pernyataan berikut yang manakah menerangkan sebab penggantian bahan tersebut?

A HCFC cost is cheaper compare to CFCKos HCFC lebih murah berbanding dengan CFC

B HCFC is not easily broken by the UV compare to CFC

HCFC tidak dapat diuraikan dengan mudah oleh sinaran UV berbanding CFC

C HCFC is a lot cooler gas compared to CFCHCFC lebih menyejukkan berbanding CFC

D HCFC is heavier gas so it does not rise to the atmosphereHCFC adalah gas berat, oleh itu ia tidak boleh sampai ke atmosfera

46. Diagram 28 shows a type of pollution.Rajah 28 menunjukkan sejenis pencemaran.

Which of the following is the effect of this type of pollution?

Diagram 28Rajah 28

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Manakah antara berikut adalah kesan daripada pencemaran ini?

A Photosynthesis in aquatic plants is increasedFotosintesis pada tumbuhan akuatik meningkat

B Growth rate in aquatic organism is increasedKadar pertumbuhan pada organisma akuatik bertambah

C Population of aquatic organism is reducedPopulasi organisma akuatik berkurangan

D Tropic level in the food chain is increasedAras trofik dalam rantai makanan bertambah

47. The following information is about eutrophication.Berikut adalah maklumat mengenai eutrofikasi.

Which of the following sequences is correct about the eutrophication process?Antara berikut,manakah urutan yang betul tentang proses eutrofikasi?

A S, P, Q, R C S, Q, R, P

B P, S, R, Q D Q, S, P, R

P Algae grow and cover the surface of the lakeAlga tumbuh dan meliputi permukaan kolam

Q The rate of bacteria reproduction increasesKadar pertumbuhan bacteria meningkat

R BOD of water increasesBOD meningkat

S Organic fertilizer flows into the lakeBaja organic mengalir ke dalam kolam

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48. Which of the following graphs shows the correct relationship between concentration ofatmospheric CO2 and global temperature ?

Antara graf berikut, yang manakah menunjukkan hubungan yang betul antara kepekatanCO2atmosfera dan suhu global ?

Key :Kekunci:

Concentration of atmosphericCO2Kepekatan CO2 atmosfera

Global temperatureSuhu global

A

Concent ra t ion of

C O 2

K e p e k a ta n C O 2

W ord

temperature

S u h u d u n i a

Concent ra t ion of

C O 2

K e p e k a ta n C O 2

W ord

temperature

S u h u d u n i a

B

C o n ce n t r a t io n o f

C O 2

K e p e k a t a n C O 2

W ord

tem perature

S u h u d u n i a

C o n ce n t r a t io n o f

C O 2


W ord

tem perature

S u h u d u n i a

C

C o n c e n t r a t io n o f

C O 2


W ord

tem perature

S u h u d u n i a

C o n c e n t r a t io n o f

C O 2


W ord

tem perature

S u h u d u n i a


Concentration ofatmospheric CO2

Kepekatan CO2atmosfera






Kepekatan CO2

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D

C o n c e n tr a tio n o f

C O 2


W o rd

te m p e ra tu re

S u h u d u n ia

C o n c e n tr a tio n o f

C O 2


W o rd

te m p e ra tu re

S u h u d u n ia

49. Diagram 29 shows an impact of a phenomenon.Rajah 29 menunjukkan impak dari suatu fenomena.

Diagram 29

What is the phenomenon?Apakah fenomena itu?

A Greenhouse effectKesan rumah hijau

B Ozone depletionPenipisan lapisan ozon

C Thermal pollutionPencemaran haba

D Global warmingPemanasan global




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50. Diagram 30 shows a human activityRajah 30 menunjukkan satu aktiviti manusia

Diagram 30Rajah 30

What is the effect of this activity ?Apakah kesan aktiviti ini ?

A Acid rainHujau asid

B LandslidesTanah runtuh

C EutrophicationEutrofikasi

D Ozone depletion

Penipisan lapisan ozon

END OF QUESTION PAPER

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PPD MELAKA TENGAH

FORM 4 END OF YEAR EXAMINATION 2010

PAPER1 ANSWERS

1 C 11 B 21 D 31 D 41 B

2 A 12 D 22 D 32 B 42 D

3 A 13 C 23 C 33 D 43 A

4 B 14 C 24 C 34 D 44 D

5 A 15 C 25 B 35 A 45 B

6 D 16 B 26 A 36 A 46 C

7 A 17 A 27 A 37 B 47 A

8 C 18 A 28 C 38 D 48 B

9 D 19 B 29 B 39 B 49 D

10 C 20 D 30 C 40 C 50 B

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1

SULIT Name

4551/2

Biology TingkatanKertas 2

OKTOBER

2 jam

PEPERIKSAAN SELARAS AKHIR TAHUN TINGKATAN 4MATA PELAJARAN SAINS DAN MATEMATIK

SEKOLAH-SEKOLAH MENENGAH NEGERI MELAKA2010

Kelolaan:PEJABAT PELAJARAN DAERAH

MELAKA TENGAH


1. Tulis nama dan kelas anda pada ruangan yang

disediakan.

2. Kertas soalan ini adalah dalam dwibahasa.

3. Soalan dalam bahasa Inggeris mendahului soalan

yang sepadan dalam Bahasa Melayu.

4. Calon dibenarkan menjawab keseluruhan atau

sebahagian soalan sama ada dalambahasa Inggeris atau bahasa Melayu.

5. Jawapan kepada Bahagian A dan Bahagian Bhendaklah ditulis dalam ruangan jawapan yang

disediakan dalam kertas soalan.

6. Calon dikehendaki membaca maklumat di halaman

belakang kertas soalan ini.

Kertas soalan ini mengandungi 21 halaman bercetak

4551/2@2010 Hak cipta JPM [Lihat sebelah]

BIOLOGI

Kertas 2

Dua jam tiga puluh minit

Untuk Keguanaan Pemeriksa

Bahagian Soalan Markah

Penuh

Markah

Diperoleh

A1 12

2 12

3 12

4 12

5 12

B6 20

7 20

8 20

9 20

Jumlah

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INFORMATION FOR CANDIDATES

MAKLUMAT KEPADA CALON

1. This question paper consists of two sections: Section A and Section B.

Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B.

2. Answer all questions in Section A. Write your answer for Section A clearly in spaces

provided in the question paper.

Jawab semua soalan dalam Bahagian A. Jawapan anda bagi Bahagian A hendaklah

ditulis pada ruang yang disediakan dalam kertas soalan ini.

3. Answer any two questions from Section B. Write your answers for Section B on the

answer sheet provided in the question paper. You may use equations, diagrams, tables,

graphs and other suitable methods to explain your answer.

Jawab mana-mana dua soalan daripada Bahagian B. Jawapan anda bagi Bahagian Bhendaklah ditulis dalam ruangan jawapan yang disediakan dalam kertas soalan. Anda

boleh menggunakan persamnaan, rajah, jadual, graf dan cara lain yang sesuai untuk

menjelaskan jawapan anda.

4. The diagrams in the questions are not drawn to scale unless stated.

Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

5. The marks allocated for each question or sub-part of a question are shown in brackets.

Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkand alam

kurungan.

6. If you wish to change your answer, cross out the answer that you have done. Then write

down the new answer.

Jika anda hendak menukar jawapan, batalkan jawapan yang telah dibaut. Kemudian

tulis jawapan yang baru.

7. You may use a non-programmable scientific calculator.

Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh deprogram.

8. You are advised to spend 90 minute to answer question in Section A and 60 minutes for

Section B.Anda dinasihati supaya mengambil masa 90 minit untuk menjawab soalan dalam

Bahagian A dan 60 minit untuk Bahagian B.

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Section ABahagian A

[60 marks][60 markah]

Answerall questions in this section

Jawab semua soalan dalam bahagian ini

1. Diagram 1 shows organelles P, Q, R and S found in a type of cells from a plantsorgan.

Rajah 1 menunjukkan organel P, Q, R dan S yang terdapat di dalam sejenis seldaripada satu organ tumbuhan.

Diagram 1Rajah 1

(a) (i) On Diagram 1 label organelles P, Q, R and S.

Pada Rajah 1 labelkan organel P, Q, R dan S.

[4 marks]

(ii) Name an organ of the plant from where organelle R is found abundantly.

Namakan organ di mana terdapatnya organel R denganbanyak.

..[ I mark]

1a(i)

1a(ii)

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(b) (i) State a process which occurs in organelle R.

Nyatakan satu proses yang berlaku dalam organel R.

[ 1 mark]

(ii) Y is a pigment which involves in the process in (b)(i).Name the pigment.

Y adalah pigmen yang terlibat dalam proses di(b)(i).Namakan pigmen itu.

[ 1 mark]

(iii) Explain the role of Y in the process.

Terangkan peranan Y dalam proses itu.

.....

[ 2 mark]

(c) P, Q and S found abundantly in animal cell..

Explain the consequences if there are lack of organelles P in the animal muscle cell.

P, Q dan S terdapat banyak dalam sel haiwan.Terangkan akibatnya jika sel kekurangan organel P dalam tisu otot haiwan.

..

..

..

.

[3 marks]

1b(i)

1b(ii)

1b(iii)

1(c)

TOTAL

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2. Diagram 2.1 shows a series of reaction. Process X is the formation of molecules Q, while

process Y is the breakdown of polypeptide.

Rajah 1.1 menunjukkan satu siri tindakbalas. Proses X adalah pembentukan molekul Q,manakala proses Y adalah penguraian polipeptida.

Diagram 2.1

(a) Name molecules P and Q.

Namakan molekul P dan molekul Q.

Molecules P: ...............................................................................................Molekul P

Molecules Q ; ................................................................ ............................Molekul Q

[ 2 marks ]

(b) Explain the process of X and Y.Terangkan proses X dan proses Y.

(i) Process X // Proses X

...

...

...

[2 mark]

2(a)

2b(i)

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(ii) Process Y // Proses Y

...

...

...

[2 mark]

(c) Diagram 2.2 show two types of organic molecules, polypeptide chains and DNA

molecule found in a nucleus.

Diagram 2.2

(i) State two structural differences between the polypeptide chains and DNA

molecule.

Nyatakan dua perbezaan dari segi srtuktur antara rantai polipetida dan molekul

DNA.

..

..

..

..

[2 marks]

2b(ii)

2c(i)

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(ii) Diagram 2.3 shows the basic unit of DNA molecule.

Diagram 2.3

Name the structures P and Q.Namakan strukturP dan strukturQ.

P : ...........................................................................................................................

Q : ...........................................................................................................................[2 marks]

[2 markah]

(ii) A DNA molecule consists of two nucleotide chains. Complete Diagram 4.2to show a DNA molecule. Part of one of the nucleotide chains has beendrawn.

Satu molekulDNA terdiri daripada dua rantai nukleotida. LengkapkanRajah 4.2 untuk menunjukkan satu molekulDNA. Sebahagian daripada saturantai nukleotida itu telah dilukiskan.

[2 marks][2 markah]

2c(ii)

2c(iii)

TOTAL

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3. Diagram 3.1 shows three stages of mitosis, P, Q and R, in an animal cell.Rajah 3.1 menunjukkan tiga peringkat mitosis, P, Q dan R, dalam sel haiwan.

(a) Name the stages P, Q and R in the spaces provided in Diagram 3.1.

Namakan peringkatP, Q dan R dalam ruang yang disediakan dalamRajah 3.1.

[3 marks][3 markah]

(b) Explain what happens at stage Q.

Terangkan apa yang berlaku pada peringkatQ.

...........................................................................................................................

...........................................................................................................................

...........................................................................................................................[2 marks]

[2 markah]

(c) State the chromosome behaviour at the following stages:

Nyatakan perlakuan kromosom pada peringkat berikut:

Stage P / PeringkatP

...........................................................................................................................

...........................................................................................................................

Stage R / PeringkatR

...........................................................................................................................

...........................................................................................................................

[2 marks][2 markah]

3(a)

3(b)

3(c)

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(d) A farmer wants to breed a good variety of banana plants for commercial production.Suggest a suitable method to be used and explain how the method named can increasethe crop yield.Petani ingin menghasilkan pisang bermutu tinggi bagi penghaslan komersial.Cadangkansatu kaedah yang digunakan dan jelas bagaimana penambahan hasil pertanian.

...........................................................................................................................

...........................................................................................................................

...........................................................................................................................

...........................................................................................................................

[3 marks][3 markah]

(e) Diagram 3.2 shows a cell at stage P. In the next stage, it is found thatchromosome M is not separated.

Rajah 3.2 menunjukkan suatu sel pada peringkatP. Pada peringkatseterusnya, didapati kromosom M tidak berpisah.

Draw and label the diagrams for the two daughter cells which will be formed in thespace provided below.

Lukis dan label rajah kedua-dua sel anak yang akan terbentuk pada ruang yangdisediakan di bawah.

[2 marks][2 markak]

3(d)

3(e)

TOTAL

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4. Diagram 4.1 (a) shows the respiratory system in human.Diagram 4.1 (b) shows the respiratory system in a fish.Rajah 4.1 (a) menunjukkan sistem respirasi manusia.Rajah 4.1 (b) menunjukkan sistem respirasi ikan.

(a) Name the structures X and Y.Namakan sturktur X dan Y.

X :

Y :[2 marks]

4(a)

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(b) Explain two characteristics that X and Y have in common for efficiency in cellularrespiration.Terangkan dua ciri persamaan bagi X dan Y untuk kecekapan proses respirasi sel.

1 :..

...

2 :..

...[4 marks]

(c) ....Explain the process of gases exchange between Y and blood capillary.Terangkan proses pertukaran gas yang berlaku antara Y dan kapilari darah.

...

...

...

...[3 marks]

d) Diagram 4.2 (a) shows the lung of a non smoker.Diagram 4.2 (b) shows the lung of a heavy smoker.

Rajah 4.2 (a) menunjukkan peparu seorang yang tidak merokok.Rajah 4.2 (b) menunjukkan peparu seorang perokok tegar.

State two conditions of the lungs in Diagram 4.2 (b) as compared to the lungs in

Diagram 4.2 (a).

4(b)

4(c)

Forexaminer

use

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Nyatakan dua keadaan peparu dalam Rajah 4.2(b) berbanding dengan peparu dalamRajah 4,2(a).

[2 marks]

(e) State one importance of the respiratory system to the organism.Terangkan satu kepentingan sistem respirasi kepada organisma.

...

...[1 mark]

5. (a) In natural ecosystems, there is competition between members of the same

species as well as between different species.

Dalam ekosistem semulajadi, berlaku persaingan antara ahli dari spesies yang samabegitu juga antara spesies yang berlainan.

Diagram 5.1

Based on Diagram 5.1, explain how competition between members of the samespecies helps to control population growth.

4(d)

4(e)

TOTAL

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Berdasarkan Rajah 5.1, terangkan bagaimana persaingan antara ahli sesama spesiesmembantu mengawal pertambahan populasi.

[ 3 marks ]

(b) Two species of the flour beetle compete with each other for flour. Both are parasitizedby a protozoan .The graph in Diagram 5.2 show the changes in numbers of the twospecies over 900 days when a parasite is absent and when it is present.

Dua spesis kumbang tepung bersaing antara satu sama lain untuk mendapatkantepung. Sejenis protozoa menjadi parasit kepada kedua-dua spesis kumbang itu .Graf dalam Rajah 5.2 menunjukkan perubahan dalam bilangan kedua-dua spesisuntuk tempoh 900 hari sama ada dikultur bersama parasit dan dikultur tanpa parasit.

DIAGRAM 5.2

i) Which species is the most successful when the parasite is absent ?Explain your answer.

Spesis manakah yang paling berjaya dalam persaingan apabila tiada parasit ?Terangkan jawapan anda.

.

.

..

..[ 3 marks ]

5(a)

5(b )(i)

Forexamine

s use

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ii) Explain the effect of the parasite on the relative success of the two beetles.

Terangkan kesan parasit berhubung dengan kemandirian kedua-dua kumbangitu.

.

.

.

[ 2 marks ]

(c) Diagram 5.3 shows the undesirable weeds which grow along with crop and poseserious problem in the crop production.The crop plants have to compete with the weeds for the same resources.

Rajah 5.3 menunjukkan rumpair yang tidak dikehendaki tumbuh bersama tanamandan menyebabkan masalah yang serius dalam pengeluaran hasil tanaman.Tanaman itu terpaksa bersaing dengn rumpair untuk mendapatkan sumber yangsama.

Diagram 5.3

State two factors that the crop and weeds may compete forand explain theeffects of the competition.

Nyatakan dua faktor yang menyebabkan tanaman dan rumpair itu bersaing untukmendapatkannya dan terangkan kesan-kesan dari persaingan itu.

Factor 1 : ...

Effect : ..

[ 2 marks ]

5 (b) (ii)

Forexaminers

use

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Factor 2 : .

Effect : .

[ 2 marks]

5(c)

TOTAL

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Section BBahagian B

[40 marks][40 markah]

Answer any two questions from this section

Jawab mana-mana dua soalan daripada bahagian ini

6. (a) Diagram 6.1 shows the initial and final stage of an experiment.Rajah 6.1 menunjukkan peringkat awal dan peringkat akhir satu eksperimen.

Diagram 6.1Rajah 6.1

Explain briefly the process shown in Diagram 6.1.Terangkan secara ringkas proses yang ditunjukkan dalam Rajah 6.1.

[4 marks]

(b) Diagram 6.2 shows a spinach stem that is immersed in different sucrosesolutions.Rajah 6.2 menunjukkan batang bayam direndam di dalam larutan sukrosayang berlainan.


Explain what happens to the spinach stem in different sucrose solutions asshown above.Terangkan apakah yang berlaku kepada batang bayam dalam larutan sukrosayang berbeza seperti yang ditunjukkan di atas.

[8 marks]

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(c) Diagram 6.3(a) shows condition of a plant during drought and Diagram 6.3(b) showsthe condition of the same plant after the plant is given water.

Rajah 6.3(a) menunjukkan keadaan sepohon pokok semasa kemarau dan Rajah6.3(b) menunjukkan keadaan pokok yang sama selepas pokok tersebut disiramdengan air.

Diagram 6.3(a) Diagram 6.3(b)Rajah 6.3(a) Rajah 6.3(b)

Two root epidermal cell P obtained from the plant in diagram 6.3(a) and Q from theplant in Diagram 6.3(b).Dua sel epidermis akar P diperoleh dari pokok dalam rajah 6.3(a) dan Q diperolehdari pokok dalam Rajah 6.3(b)

Cell P Cell QSel P Sel Q

Based on Diagram, explain what had happened to the plant

Berdasarkan Rajah, terangkan apa yang telah berlaku pada tumbuhan tersebut.[8 marks]

[8 markah]

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7.(a) Explain why it takes several minute for the pulse rate to return to normal after a vigorousexercise.

Terangkan mengapakah kadar degupan jantung mengambil masa beberapa minit untukkembali normal selepas aktiviti cergas.

[4 marks](b) Diagram 7.1 shows two different organelles.

Rajah 7.1 menunjukkan dua jenis organel yang berbeza.


Explain the differences between the processes that take place in organelle P andOrganelle Q.

Terangkan perbezaan proses yang berlaku dalam organel P dan Q.[6 marks]

(c) Diagram 7.2 shows gaseous exchange across the surface of the alveoli and bloodcapillaries, and between the tissue capillaries and body cells.

Rajah 7.2 menunjukkan proses pertukaran gas melalui permukaan alveolus dan kapilaridarah, dan antara kapilari darah dan sel badan.


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Based on diagram, explain the process of gaseous exchange between the alveoli andblood capillaries, and between the tissue capillaries and body cells.Your explanation should be based on the differences in the partial pressure ofrespiratory gases between the tissues.

Berdasarkan gambarajah, terangkanproses pertukaran gas antara alveolus dan kapilaridarah dan antara tisu kapilari dan sel badan. Penerangan mestilah berdasarkan

perbezaan kepekatan gas respirasi antara tisu. [10 marks]

8. Diagram 8 shows the assimilation of digested food in the organ and bodycell.Gambarajah 8 menunjukkan proses asimilasi makanan yang tercerna didalam organ dan sel badan.

DIAGRAM 8Gambarajah 8

a ) Based on Diagram 8 , explain the assimilation of the following nutrient

Berdasarkan gambarajah 8, terangkan proses asimilasi untuk nutrien

( i ) glucoseglukosa

( ii ) amino acidsasid amino

( iii ) lipidslipid

[ 10 marks ]

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b) Energy requirement for a girl aged 15 is 9000 kJ daily. Table 1 shows types offood, quantity and energy content of her daily

menu.

`` Keperluan tenaga bagi seorang gadis berusia 15 tahun ialah 9000kJ sehari.Jadual 1 menunjukkan jenis makanan, kuantiti dan kandungan tenaga didalam menu hariannya.

Types of foodJenis makanan

Quantity takenKuantiti yang

diambil( g )

Energy ContentJumlah tenaga

( kJ /100 g )

Ricenasi

350 1500

ChipsKeropok

150 1000

Roasted ChickenAyam panggang

300 800

Grilled Beef

Daging panggang

200 1200

Boiled potatoKentang rebus

150 500

ChocolateCoklat

100 2500

Yogurt / Dadih 200 200

EggTelur

100 600

TABLE 1Jadual 1

Calculate the total energy value taken by the girl daily .Does the energy values satisfy her requirement ?

If she continues to take the menu everyday for a long time, explain theconsequences of the habit to her health.

Kirakan nilai jumlah tenaga yang diambil oleh gadis tersebut setiap hari.Adakah nilai tenaga itu memenuhi keperluan gadis itu?Jika beliau meneruskan pengambilan menu tersebut setiap hari untuk jangkamasayang panjang, terangkan kesan tabiat tersebut terhadap kesihatannya.

[10 marks ]

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9. Due to development, air pollution is becoming one of a health hazard tohuman.

Pencemaran udara merupakan salah satu kesan pembangunan yangmenyebabkan masalah kesihatan kepada manusia

(a) Discuss the above statement.Bincangkan pernyataan di atas. [10 marks]

(b) Discuss the effects of mismanaged development on the ecosystem. Describethree steps that can be used to overcome this problem.

Bincangkan kesan-kesan daripada pembangunan yang tidak terancang keatas ekosistem. Huraikan tiga langkah yang boleh digunakan untuk mengatasimasalah ini.

[10 marks]


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MARKING SCHEME : F4 END OF YEAR EXAM - PAPER 2

SECTION A

1(a)i

(a)ii

(b)i

(b)ii

(b)iii

(c )

Able to shows organelles P,Q R and S found in

a type of cells from a plants organ.

Answer

P: mitochondria

Q: rough endoplasmic reticulum

R: chloroplastS: Golgi apparatus

Able to name the organelle accurately

Answer

Leaf

Able to state the process that occurs in theorganelle R

Answer

Photosynthesis

Able to name the pigmentAnswerchlorophyll

Able to explain the role of Y in the process

Answer

F Absorb sunlight

E1 change the light energy to chemical energy

E2 carbon dioxide and water is convert into glucose

E3 (and) stored as starch/food in plant

Any two

Able to explain the consequence of a lack oforganelle P in the animals muscle cellAnswer

F its a sites of cellular respiration

E1 less energy is generated/produce

E2 less work can be done by the muscle

1

1

1

1

1

1

1

1

1

1

1

111

TOTAL

4

1

1

1

2

3

12

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2

2(a)

(b)

(c)(i)

(c )(ii)

(c )iii

Able to name the molecules P and Q

Answer

P: amino acids

Q: dipeptide

Able to explain the processes of X and Y

Answer

i.Process X

P1:molecules P combined together chemically by

condensation process

P2:molecules of water is produced

ii. Process Y

P1:polypeptide can be broken down into

molecule Q through hydrolysis processP2: requires a molecules of water to breakdown

Able to state two structural differences

between the polypeptide chains and DNA

molecule

Sample answer

P1 DNA is double stranded whereaspolypeptide is single stranded

P2 DNA is made up of repeating units of

phosphate, sugar and nitrogenousbases(nucleotides) whereas polypeptide is made

up of (20) different type of amino acids

Able to name the structures P and QAnswerP: phosphate moleculeQ: nitrogenous base

Able to complete the DNA moleculeAnswer

11

1

1

1

1

1

1

11

2

2

4

2

2

2

12

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3

3(a)

(b)

(c )

(d)

(e)

Able to name the stages P,Q and R

AnswerP: metaphaseQ:prophase

R: anaphase

Able to explain what happens at stage Q

AnswerP1: chromosome become shorter and thicker

P2: each chromosome consist of two sister chromatids joint

together at the centromeres

P3: spindle fibres begin to form between the centrioles

Able to state the chromosome behaviour at the followingstagesAnswer

Stage P: the chromosomes are arranged randomly at the cell

equator/metaphase plate

Stage R: the two sister chromatids of each chromosomes arepulled apart to the opposite poles

Able to suggest a suitable methodAnswer

Tissue culture

Able to explain how the method named can increase the cropAnswer

P1:plant tissues are cut into small pieces called explantP2: explants are transferred into a test tube containing culturemediumP3:explant divide through mitosis and develop new shootsP4:roots will then develop through mitosis producing young plants

Able to draw and label the diagram for the twodaughter cellswhich will be formed in the space provided

Answer

11

1

1

1

1

1

1

1

1

1

1

1

1

1

TOTAL

3

2

2

1

2

2

12

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4

4(a)

(b)

(c )

(d)

Able to name structure X and Y correctly

AnswerX : alveolusY : Filament

Able to explain two characteristics which the human respiratorysystem and the fish respiratory system have in common correctlySample answer

F1 : Both have many tiny structures // human has many alveolus andfish has many filaments / lamellas

E1 to increase total surface( area per volume )F2 : Both respiratory organs are surrounded by many/very densenetwork of blood capillaries for diffusion of gasesE2to be more efficientP3 : Both respiratory organs have very thin cellmembranes/surfaces , only one cell thick for diffusion of gases to

be more efficientP4 : Both respiratory organs are moist , the gases easily dissolvedin the moist , diffusion of gases more efficient

Any two characteristics with explanations

Able to explain the process of gases exchange betweenY and blood capillarySample answer

P1 : During inhalation , the dissolved oxygen diffusesP2 : into the blood capillary

P3 : Oxygen combine with haemoglobin to form oxyhaemoglobinP4: transported to tissues for cellular respirationP5 : Carbon dioxide diffuses into the blood capillary

Any threeAble to state the condition of the heavy smokers lung.Sample answer

P1 : Dark sport in the tissues of lung are particles of carbon /tar /other suitable substances from cigarette smoke

P2 : that passed through respiratory passages / logged in the lungsP3 leads to black lung

P4 (become) cancerous cellAny two

1

1

2

2

2

2

11

1

1

1

1

1

1

1

2

4

3

2

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5

(e) Able to state one importance of the respiratory system to theorganismSample answer

P1 : to supply / transport oxygen to the tissues// to transport carbon dioxide from the tissue

1

TOTAL

1

12

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6

5(a)

(b)(i)

(b)(ii)

(c )

Able to explain the competition

Sample answer:F: intraspecific competitionE1: Animal which is stronger,E2: obtain more food (and) will survive at the

expense of others

Able to choose the species correctlyAnswer :

Species A

Able to explain the succesfull species due to the numberof adult beetlesSample answerP1. number of adult species is higher than species B.P2. after 300 days the number of species B decrease

but species A increase

Able to explain the effect of the parasiteSample answer:P1. species B more succesful/survive in the

competitionP2. parasite destroyed species A

Able to state the factors and explanationSample answerF1: compete for light intensity/E1: for photosynthesis / Produce energyE3: weeds faster growth/ over-power the cropF2: compete for water/moisture

E2: weeds deplete soil moisture much faster than the cropE3: hence under limited soil moisture, E4:the crop faces drought.

Any four

TOTAL

111

1

1

1

1

1

11

1

1

1

1

1

3

3

2

4

12

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7

SECTION B

6 a

( b)

Able to explain he process in the Diagram 6.1

Sample answer

P1 -The process shown is osmosis

P2 -At the initial stage, the concentration of sucrose is high /hypertonic in arm A compared to arm B.

P3- Thus, the osmosis pressure is higher in arm A compared

to arm BP4- water molecules from arm B move across the semi-permeables

membrane into arm AP5-until the concentration of both arms reach a dynamic

equilibriumP6- at the final stage, the concentration of sucrose is the same in

both arms / isotonic.P7- Thus , the osmotic pressure is the same in both arms/ The level

of water is higher in arm A compared to arm B

Any four points

Able to explain what happens to the spinach stem in

different sucrose solutionsSample answer

Spinach stem in 0.01 M sucrose solution

P1 M sucrose solution is a hypotonic solution

P2 The vacuole expands and swells up

P3 The vacuole and the cytoplasm press outwards

against the plasma membran which in turn pressesagainst the cell wall.

P4 The cell becomes turgid and firm as a result of the net flow of water

into the cell

P5 The strip becomes longer, thicker and turgid. It curves outwardswith the epidermal layer on the inside.

Any three

Spinach stem in 0.5 M sucrose solutionP1 0.5 M sucrose solution is an isotonic solution

P2 Water enters and leaves the cells at the same rate

P3 The length and the shape of the strip remain the same.

Any two

Spinach stem in 1.5 M sucrose solution

P1 1.5 M sucrose solution is a hypertonic solution

P2 Both the vacuole and the cytoplasm lose water to the surroundings

and shrink.

P3 The plasma membrane pulls away from the cells wall.

P4 The cells become flaccid.

P5 The strip become shorter.

P6 It curves inwards with the epidermal layer on the outside

Any three

111

1

1

1

1

1

11

1

1

1

3

1

1

1

2

1

1

1

11 3

4

8

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8

(c) Able to explain what had happened to the plantDiagram 6.3(a) Wilting in plants

P1 wilting is caused by the excessive use of fertilizers.

P2 fertilisers dissolve in the soil water.P3 This makes the soil water become more concentrated

(hypertonic) than the cell sap of the plant roots

P4 water diffuses out from the cell sap into the soil by osmosis,

causing the cells to be plasmolysed.

P5 the leads to wilting and the plants eventually die if water is not

supplied immediately.

Diagram 6.3(b) Turgidity in plant

P1 Plant cell is immersed in hypotonic solution

P2 Water molecules diffuse into the cell by osmosisP3 Vacuole gains water, expand and exerts pressure outwards on the

cell wallP4 Cause the plant cell to become turgid

11

1

1

1

1

1

1

1

1

TOTAL

8

20

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9

Organelle P Organelle Q

Process Photosynthesis Respiration

Purpose Stores energy Release energy

Rawmaterial

Water and carbondioxide

Glucose andoxygen

Products Glucose, water andoxygen

Energy, water andcarbon dioxide

Energy Required Not required.

7 a

b.

c.

Able to explain why it takes several minute for the

pulse rate to return to normal after vigorous exerciseSample answer

F After vigorous exercise,the pulse rate takes several

minutes to return to normal.

E1 During exercise, the intake of oxygen is not able to meet theoxygen demand of the body.

E2 Respiration has to take place an aerobically.

E3 As a result, lactic acid accumulates in the muscle.

E4 After exercise, the pulse rate takes several minutes to return to

normal because more oxygen is need to oxidize the lactic acid

and to provide the energy for the recovery of the muscle.

Able to explain the differences between the process that take placein organelle P and Q

Organelle P is chloroplast

Organelle Q is a mitochondrion

Able to explain the process of gaseous exchange between thealveoli anf blood capillaries, and between the tissue capillaries andbody cells.

F The partial pressure of oxygen in the air of the alveoli is higher

(when compared to the partial pressure of oxygen in the

blood capillaries)

E1 Oxygen dissolve in the film of water on the surface of alveoli and

E2 then diffuses into the blood capillaries.

1

1

1

1

1

1

1

11

11

1

1

1

1

4

6

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10

E3 The blood that leaves the lungs via the pulmonary vein has a

high partial pressure of oxygen

E4 and low partial pressure of carbon dioxide.E5 The blood that reaches the tissue capillaries has a higher partial

pressure of oxygen than that of the body cellsE 6 because cellular respiration depletes the oxygen content in the

cells.E7 Hence, oxyhaemoglobin breaks down and release the oxygenE8 which diffuses through the capillary walls into the body cells.E9 This oxygen is used for cellular respiration.E10 Cellular respiration produces carbon dioxide,E1 1 cause the partial pressure of carbon dioxide in the body cells

higher thanE 1 the partial pressure of carbon dioxide in the tissue capillaries.

E13 Carbon dioxide diffuses out of the body cells into the

tissue capillaries

E14 then transported back to the lungs.

E15 Blood arriving at the lungs via the pulmonary artery has a lowerpartial pressure of oxygen

E16 and a higher partial pressure of carbon dioxide compared to theblood leaving the alveoli.

E 1 7 As a result, both gases diffuse down their partial pressuregradients.

1

11

1

1

1

11

11

1

1

1

1

TOTAL

10

20

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11

8 (a)

(b)

Able to explain the assimilation of digested food of

glucose , amino acids and lipids

Sample answerIn the liverGlucose

P1 Excess of glucose in the blood is converted to glycogenand stored

P2 When glucose level in blood is low glycogen is converted to

glucose

P3 Excess of glycogen is converted to lipids

Amino acid

P4 Synthesis of plasma protein from amino acids

P5 Excess amino acids are deaminated into urea

In the body cell

Glucose

P6 glucose is oxidized to release energy (in cellular respiration)

Amino acid

P7 Amino acids is used to synthesise new protoplasm/

repair of damaged tissues

P8 Amino acids is used to synthesise

enzymes/antibodies/hormones

Lipids

P9 Excess lipids is stored in adipose tissues

P10 Phospholipids and cholesterol make up the plasma membrane

Any 10

Able to calculate the energy value taken dailyAnswer

Total energy value is5250+1500+2400+2400+750+2500+400+600=15800KJ Theenergy value is exceeded the girl needs

Able to explain the consequences of the eating habit when taking the

menu daily for a long time

Sample answer

P1 The menu is not a balanced diet /does not contain the 7 classes

of food in appropriate ratio

P2 Menu is highly rich in carbohydrates and fats// no vegetables

and lack of vitamins

P3 Higher energy intake compare to energy requirement

for a girl aged 15

1

1

1

11

1

1

1

1

1

1

1

1

1

1

10

2

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12

Consequences

F1 Constipation /description

E1 lack of fiber , faeces moving to slowly through the colon

F2 ScurvyE2 lack of vitamin C //any other vitamins deficiency with

explanation

F3 Obesity

E3 increase in body weight drastically

F4 Diabetes mellitus/glucosuria

E5 excess of glucose contain in blood

F6 Arteriosclerosis

E6 fats deposited in the lumen of blood vessel

F7 Heart attack/angine

E7 blockage in the coronary artery //

Any other cardiovascular diseases with explanationAny eight

11

1

1

1

1

1

1

1

1

1

1

TOTAL

8

20

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13

9 a.

b.

Able to discuss the statement

Sample answer

F1-Incomplete combustion of fossil fuel

P1-Carbon monoxideP2-combid with haemoglobin and affects the transport of oxygen tobody cellsP3-causes fatigue and headache

F2-FactoriesP4-Sulphur dioxide/oxides of nitrogenP5-Irratates the eyesP6-damage the respirary passaesP7-causes bronchitis/asthamicP8- combines with rainwater to form acid rainP9-corrodes iron and building

F3 Open Burning/combustionP10 Carbon dioxideP11 leads to green house effect and global warming

Any tenAble to discuss the effects of mismanaged development on theecosystem and three steps that can be used to overcome thisproblem.

Sample answer

P1-Excessive cutting down of trees increases the Earths

temperature.P2-More carbon dioxide in the air causes greenhouse effect/globalwarming.P3-Illegal logging / uncontrolled deforestationP4-may cause that land to be exposed to soil erosionP5-Excessive use of pesticides can cause water pollution. P6-excessive use of fertilizers cause EutrophicationP7-Aquatic plants and animals dieP8-More vehicles causes more carbon dioxide/ carbon monoxide/lead in the atmosphere.P9- Factories release Sulfur dioxideP10-causes acid rain.P11-Glass buildings cause thermal pollution.P12-Construction sites/entertainment outlets /factories cause noisepollution.P13- Clearing of land / burning of trees cause air pollution.

Any 7

To overcome this problem :

P1- recycle, reuse and reduce.P2-Paper aluminium cans and glass bottles can be recycled.P3-Glass or plastic containers can be reused to conserve naturalresources.P4-Reducing the use of paper, polystyrene and plastic bags save theenvironment.

Any 3

1

1

1

11

1

1

1

1

1

1

1

1

1

1

1

1

11

1

1

1

1

1

1

1

1

1

1

1

1

1

TOTAL

10

7

3

20

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SULIT[Type the document title] 4551/3

4551/3

biologi

Kertas 3

Oktober 2010

1 jam

PEPERIKSAAN SELARAS AKHIR TAHUN TINGKATAN 4

MATA PELAJARAN SAINS DAN MATEMATIK

SEKOLAH-SEKOLAH MENENGAH NEGERI MELAKA

2010

Kelolaan:

PEJABAT PELAJARAN DAERAH

MELAKA TENGAH*ALOR GAJAH*JASIN

BIOLOGI

KERTAS 3

Satu jam tiga puluh minit


1. Tuliskan nombor kad pengenalan dan nama

anda pada ruang yang disediakan.

2. Calon dikehendaki membaca maklumat di

halaman 1.

Kertas soalan ini mengandungi 11 halaman bercetak [lihat sebelah

4551/3 SULIT

Soalan Markah

Penuh

Markah

Diperoleh

1 33

2 Respons

17

Jumlah

No. K/P:

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SULIT 4551/3

2

INFORMATION FOR CANDIDATES

1. This question paper consists of two questions. Answer all questions.

2. Write your answers for Question 1 in the spaces provided in the question paper.

3. Write your answer for Question 2 on the lined pages at the end of the question

paper in detail. You may use equations, diagrams, tables, graphs and other

suitable methods to explain your answer.

4. Show your working, it may help you to get marks.

5. If you wish to cancel any answer, neatly cross out the answer

6. The diagrams in the question are not drawn to scale unless stated.

7. Marks allocated for each question or part question are shown in brackets.

8. The time suggested to complete Question 1 is 45 minutes and Question 2 is 45

minutes.

9. You may use a non-programmable scientific calculator.

10. Hand in this question paper at the end of the examination.

Marks awarded:

Score Description

3 Excellent : The best response

2 Satisfactory: An average response

1 Weak: An inaccurate response

0 No response or wrong response

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SULIT 4551/3

3

Answer all the question

The time suggested to complete each question is 45 minutes

Jawab semua soalan

Masa yang diperuntukkan untuk soalan ini ialah 45 minit

1. A group of students carried out the experiment to study the movement of

substances across the plasma membrane. Figure 1(a) shoes the procedures that

have been used to carry out that experiment. The results are shown in Figure

1(b)(i), Figure 1(b)(ii) and Figure 1(b)(iii).

Sekumpulan pelajar melaksanakan satu eksperimen untuk mengkaji pergerakan

bahan merentas membrane separa telap. Rajah 1(a) menunjukkan Kaedah yang

telah digunakan untuk menjalankan eksperimen. Keputusan eksperimen

ditunjukkan dalam Rajah 1(b)(i), Rajah 1(b)(ii) dan Rajah 1(b)(iii).

Figure 1(a)

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SULIT 4551/3

4

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5

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SULIT 4551/3

6

(a) Record the level of sucrose solution in the boxes provided in

Figure 1(a), 1(b)(i), 1(b)(ii) and 1(b)(iii)

Catatkan aras larutan sukrosa ke dalam kotak pada Rajah 1(a),

1(b)(i), 1(b)(ii) dan 1(b)(iiii)

[3 marks]

(b)(i) State two observations that can be made from the experiment.

Nyatakan dua pemerhatian yang dapat dibuat daripada

eksperimen ini

1. ..

..

2. .

[3 marks]

(ii) State two inferences from the observations in (b)(i)

Nyatakan inferens bagi setiap pemerhatian (b)(i)

1. ..

2. ...

.

[3 marks]

(c) Construct a table and record all the data collected in the experiment.

Binakan satu jadual dan rekodkan data-data yang didapati dalam

eksperimen.

[3 marks]

For Examiners

Use

Untuk

kegunaan

pemeriksa

1(a)

(b)(i)

1(b)(ii)

(c)

For

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SULIT 4551/3

7

(d) Complete Table 1 based on the experiment that was carried out.

Lengkapkan Jadual 1 berdasarkan eksperimen yang dijalankan.

Variables

Pembolehubah

Particular to be implemented

Perkara-perkara yang dikendalikan

Manipulated

Variable

Pembolehubah

Dimanipulasikan

.

How to alter the manipulated variableBagaimana mengawal pembolehubah dimanipulasi

..

..

Responding

Variable

Pembolehubah

Bergerakbalas

.

.

How to determine the responding variableBagaimana menentukan pembolehubah

bergerakbalas

.

.

Controlled

Variable

Pembolehubah

dimalarkan

.

.

How to maintain the controlled variableBagaimana menetapkan pembolehubah dimalarkan

..

.

Table 1

Jadual 1

[3 marks]

Examiners

Use

Untuk

kegunaan

pemeriksa

(d)

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SULIT 4551/3

8

(c) State the hypothesis for this experiment

Nyatakan hipotesis bagi eksperimen ini

..

..

..

[3 marks]

(f) Describe the relationship between time and the increase of sucrose

solution level in the scaled glass tube

Huraikan hubungan antara masa dengan kenaikan larutan sukrosa

pada tiub kaca berskala.

[3 marks]

(g) Predict the expected observation, if this experiment is to be continued

for another 2 hours. Explain your answer.

Ramalkan pemerhatian yang dijangkakan jika eksperimen ini

diteruskan untuk 2 jam lagi. Terangkan jawapan anda.

..

[3 marks]

For

ExaminersUse

Untukkegunaan

pemeriksa

(e)

(f)

(g)

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SULIT 4551/3

9

(h) What can be deduced about the osmosis based on the results of this

experiment?

Berdasarkan keputusan eksperimen, apakah yang dapat anda

rumuskan tentang proses osmosis

..

..

[3 marks]

(i) Another student has carried out an experiment by using thesesolutions:

Seorang pelajar lain menjalankan kajian dengan mengunakan

larutan seperti berikut:-

Distilled water 15% sucrose solution

Air Suling Larutan sukrosa 15%

20% sucrose solution

Larutan sukrosa 20%

For

Examiners

Use

Untuk

kegunaanpemeriksa

(h)

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SULIT 4551/3

10

Classify the above cells A, B, C and D to the solutions that affects them after

being immersed.

Kelaskan sel-sel A, B, C dan D di atas yang menyebabkan sel berkeadaan

demikian.

[3 marks]

For

Examiners

Use

Untuk

kegunaanpemeriksa

(i)

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SULIT 4551/3

11

2. A group of students carried out an experiment to determine the effect of the

intensity of light on the rate of photosynthesis. The distance between the light

source andHydrilla sp is kept constant at 20cm.

Design a laboratory experiment that includes the required aspects to study the

relationship between the intensity of light and the rate of photosynthesis.

Sekumpulan pelajar menjalankan eksperimen untuk mengkaji kesan keamatan

cahaya ke atas kadar fotosintesis. Kedudukan di antara sumber cahaya dengan

tumbuhan Jydrilla sp ditetapkan pada 20cm.

Reka bentuk satu eksperimen di makmal yang mengandungi kesemua aspek yang

diperlukan untuk mengkaji hubungan antara keamatan cahaya dengan kadar

fotosintesis.

[17 marks]


KERTAS SOALAN TAMAT

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4551/3 (PP)

SULIT

4551/3 (PP)

Biologi

Kertas 3

Peraturan

Pemarkahan

Oktober

2010

PEPERIKSAAN SELARAS AKHIR TAHUN

TINGKATAN 4 SAINS TULEN

SEKOLAH-SEKOLAH NEGERI MELAKA

2010

BIOLOGI

KERTAS 3

MARK SCHEME

Peraturan pemarkahan ini mengandungi 16 halaman bercetak.

[lihat sebelah

4551/2 (PP) SULIT

AMARAN

Peraturan pemarkahan ini SULIT. Kegunaannya khusus untuk pemeriksa

yang berkenaan sahaja. Sebarang maklumat dalam peraturan pemarkahan

ini tidak boleh dimaklumkan kepada sesiapa. Peraturan pemarkahan ini

tidak boleh dikeluarkan dalam apa jua bentuk penulisan dan percetakan.

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Question 1

ITEM SCORE EXPLANATION NOTES

(a)KM0603 Measuring using number

3

Able to record all four level of sucrose solution correctly.

Sample answer:

Time (min) The rise in the sucrose solution level

(ml)

0 0.0

10 4.5

20 9.5

30 9.9

2 Able to record any three level of sucrose solution correctly

1 Able to record any one of the observations correctly


(b)(i)KB0601 Observing

3

Able to state all observations from the table correctly and

accurately.

Sample answer:

1. The first 10 minutes, the sucrose solution level is 4.5ml2. At the 20

thminutes, the sucrose solution level is 9.5ml

3. At the 30th

minutes, the sucrose solution level is 9.9ml

2

Able to state any three observations from table 1 correctly

and accurately or statement of interpretation of data

Sample answer:

1. For the 2nd

reading, the sucrose solution level is 4.5ml

2. For the 3rd


3. For the 4

th


1

Able to give idea for the observation

Sample answer:

1. There is an increase in the sucrose solution level.

0 No response OR wrong response

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(b)(ii)

KB0604 Making inference

The inference is

based on the

respective

observation

3

Able to state the inference of each observation made

correctly and accurately based on the following criteria:

1. State the time taken for the observation

2. State the increasing of sucrose solution level causedby the osmosis process.

Sample answer:

1. At the tenth minute, water molecules move through the

Visking tubing due to osmosis process.

2. At the twentieth minute, water molecules moves

through the Visking due to osmosis process.

3. At the thirtieth minute, water molecules move though

the Visking tubing due to osmosis process

2

Able to state any one inference correctly based in the given

criteria,

OR

Able to state an idea of inference for both observations

made based on the given criteria.

Sample answer:

1. Water molecules move through the Visking tubing due

to osmosis process.

1

Able to state any one idea of an inference for any one

observation made

Sample answer:

1. Water molecules move in.

2. Osmosis process occurs.


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(c)

3

Able to construct a table with the correct title, units and

date.

Time (minutes) The rise in the sucrose solution level

(ml)

0 0.0

10 4.5

20 9.5

30 9.9

2 Able to construct a table with the correct title, unit and

three correct date.

1 Able to construct a table with the correct title, unit and two

correct date.


(d)

KB0610 Controlling variables

Able to state the variables in this experiment correctly

Sample answer:

Variables Particulars to be implemented

Manipulated

Variables:Time

How to alter manipulated variables

The readings are taken at the differentintervals// The reading are taken at 10

minutes intervals

Responding

Variables :

The rise in the

sucrose

solution level

How to determine the manipulated

variables:

Measure the rise in the sucrose

solution level by using the scale on the

glass tube

Controlled

variables:

Sucroseconcentration//

Volume of

distilled

water

How to maintain the controlled

variables:

Using the same concentration ofsucrose solution// Using the same

volume of distilled water

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Notes:

Variables and particular implemented must be related to

each other.

One mark for each variables and correct particular

implemented.

(e)

KM0611 Making hypothesis

C1 & C2

Must be

Stated

Correctly

3

Able to make a statement of hypothesis by relating the

manipulated variable with the responding variable

correctly and accurately.

Criteria set:

C1: State the manipulated variable

C2: State the responding variable

C3: Show a specific relationship/showing direction ofrelationship

Sample answer

1. The longer the time taken, the higher the level of

sucrose solution (on the scaled glass tube)

2. The shorter the time taken, the higher the level of

sucrose solution in the scaled glass tube

3. If the time taken is shorter, the level of sucrose solution

in the scaled glass tube is less.

2 Able to make a statement of hypothesis based on the

following criteria:

Criteria set:

C1: State the manipulated variable

C2: State the responding variable

C3: Show the relationship but not specific/no direction

Sample answer

1. Time affects the increased of sucrose solution level in

the scaled glass tube.

2. The increase of sucrose solution level is related to the

time taken.

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1 Able to give an idea of a statement of hypothesis. Stating a

relationship with C1 or C2.

Sample answer:

1. The level of sucrose solution increase in the scaled

glass tube


(f)

KM0608 Interpreting Data

3 Able to state the relationship between the time and the

increasing of the sucrose solution level in the scaled glass

tube correctly and accurately.

Sample answer:

The level of sucrose solution increases with time. This is

because water molecules from outside the Visking tubing

diffuse through the semi-permeable Visking tubing by

osmosis process.

2 Able to state the relationship between the time and the

increasing of sucrose solution level in the scaled glass tube

but less accurate.

Sample answer:

1. The level of the sucrose solution increase with time.

1 Able to state an idea of a relationship between the time and

the increasing of sucrose solution level in the scaled glass

tube.

Sample answer:

1. The level of the sucrose solution increases.


(g)KM0605 Predicting

3 Able to predict the increasing of sucrose solution level in

the scaled glass tube and the explanation.

Criteria:

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C1: No increase//increase in the level of sucrose solution

in the scaled glass tube.

C2: Level of sucrose solution is 9.9ml// more than 9.9ml

C3: The net movement of water molecules in and out of

the membrane is the same// Water molecules

enter/diffuse through the semi-permeable Visking

tubing by osmosis process.

Sample answer

1. The level of sucrose solution in scaled glass tube

increases more than 9.9ml because water molecules

enter/diffuse through the semi-permeable Visking tubing

by osmosis process.

2. There is no increase in the level of sucrose solution in

the scaled glass tube because the dynamic equilibrium

has achieved. The level of sucrose solution in the scaled

glass tube is 9.9ml because the net movement of watermolecules in and out of the membrane is the same.

2 Able to predict the increasing in the level of sucrose

solution in the scaled glass tube and the explanation but

incomplete or based on theory.

Sample answer

1. The level of sucrose solution in scaled glass tube

increases more than 9.9ml2. The level of sucrose solution in scaled glass tube

increases due to osmosis process.

1 Able to give idea of a prediction on the observation

Sample answer:

1. The level of sucrose solution in the glass scaled tube

increases.

2. Water molecules enter the Visking tubing through

osmosis process.

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(h)KB0609 Defining by Operation

3 Able to state correctly and accurately the definition of

osmosis based on the results of the experiment using the

following criteria:

C1: Process of water molecules entering the Visking

tubing

C2: Time taken for the increasing in the level of sucrose

solution in the scaled glass tube

C3: The increasing in the level of sucrose solution in thescaled glass tube

Sample answer:

1. Osmosis is a process where water molecules move from

the distilled water to the 30% sucrose solution through

the Visking tubing (until equilibrium is achieved)

2. Osmosis is a process where water molecules enter the

Visking tubing at the tenth minute and the level of

sucrose solution in the scaled glass tube is raised at 4.5ml.


Visking tubing at the twentieth minutes and the level of

the sucrose solution in the scaled glass tube is raised at

9.5ml.


Visking tubing at the thirtieth minute and the level of the

sucrose solution in the scaled glass tube is raised at4.5ml.

2 Able to state accurately the definition of osmosis based on

two correct criteria or able to state the definition of

osmosis based on theory.

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Sample answer:


the distilled water to the (30%) sucrose solution.

1 Able to state less accurately the definition of osmosis or

able to give an idea of a definition.

Sample answer:

1. Osmosis is process where water molecules move from a

lower concentration of solute to a higher concentration

of solute through the Visking tubing.


a higher concentration of water molecules to a lower

concentration of water molecules through the Visking

tubing


(i)KB-0602 Classifying

3 Able to classify the solution and the picture base on the

correct function.

Material Picture

Distilled water C

15% sucrose solution A20% sucrose solution B and D

2 Able to c

biologi k123 f4 2010

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