BIOLOGY FORM 4 (BIOLOGI TINGKATAN 4)UJIAN PENGGAL 2 2016 (BULAN JULAI)

Nama murid: ________________________ Kelas : _________________ Tarikh : _________________Student’s name Class Date

Section A / Bahagian A

1. Diagram 1 shows the cell cycle.Rajah 1 menunjukkan satu kitar sel

Diagram 1Rajah 1

What happen in Q?Apakah yang berlaku di Q?

A Cytokinesis B The nucleus is dividedSitokinesis Nukleus telah terbahagi

C DNA replication D Crossing overReplikasi DNA Pindah silang

2. Diagram 2 shows a stage of mitotic division in animal cells.Rajah 2 menunjukkan suatu fasa pembahagian mitosis bagi sel haiwan.

Diagram 2Rajah 2

What is the phase shown?Apakah fasa yang ditunjukkan?

A Prophase B MetaphaseProfasa Metafasa

C Anaphase D TelophaseAnafasa Telofasa

3. Diagram 3 shows a process during prophase I.Rajah 3 menunjukkan satu proses semasa profasa I.

Diagram 3Rajah 3

What is the significance of the process?Apakah kepentingan proses ini?

A To produce identical daughter cellsUntuk menghasilkan sel anak yang sama

B To ensure all the chromosomes are segregatedproperly laterUntuk memastikan semua kromosom diasingkandengan baik

C To produce new gene combinationsUntuk menghasilkan kombinasi gen yang baru

D To produce the spindle fibresUntuk menghasilkan gentian gelendong

4. Which of the following plants practices holozoicnutrition?Antara berikut, yang manakah mengamalkan nutrisi holozoik?

A Mushroom B Palm oilCendawan Kelapa sawit

C Pitcher plant D Mimosa pudicaPokok periuk kera Pokok semalu

5. Which of the following is a fat soluble vitamin?Antara yang berikut, yang manakah vitamin yang larutlemak?

A Vitamin A B Vitamin B1Vitamin A Vitamin B1

C Vitamin B12 D Vitamin CVitamin B12 Vitamin C

6. Which of the following is present in the pancreatic juice?Antara yang berikut, yang manakah terdapat pada jus pankreas?

A Salivary amylase B Hydrochloric acidAmilase air liur Asid hidroklorik

C Pepsin D TrypsinPepsin Tripsin

7. Diagram 4 shows part of the human alimentary canal.Rajah 4 menunjukkan sebahagian daripada salur alimentari manusia.

Diagram 4Rajah 4

Which of the following is the function of the acidsecreted by organ R?Antara yang berikut, yang manakah fungsi asid yang dirembes oleh organ R?

A To stop the action of pepsinUntuk menghentikan tindakan pepsin

B To kill the bacteria in foodUntuk membunuh bakteria dalam makanan

C To stimulate the secretion of the gastric juiceUntuk merangsang perembesan jus gastrik

D To enhance the action of salivary amylase fromthe mouthUntuk meningkatkan tindakan amilase liur daripadamulut

8. Which word equation shows the digestion of proteinin the small intestine correctly?Persamaan perkataan manakah yang menunjukkanpencernaan protein dalam usus kecil dengan betul?

A Polypeptide trypsin peptide + waterPolipeptida tripsin peptide + air

B Polypeptide + water erepsin peptidePolipeptida + air erepsin peptida

C Peptide + water pepsin amino acidPeptida + air pepsin asid amino

D Peptide + water erepsin amino acidPeptida + air erepsin asid amino

9. Diagram 5 shows the cross section of a villus.Rajah 5 menunjukkan keratan rentas satu vilus.

Diagram 5Rajah 5

Which substance is absorbed at W?Bahan manakah yang diserap di W?

A Glycerol B Amino acidGliserol Asid amino

C Fatty acid D Fat-soluble vitaminAsid lemak Vitamin larut lemak

10. An experiment was carried out to determine the concentration of vitamin C in lime juice.Results obtained were recorded in the table below.Satu eksperimen telah dijalankan untuk menentukankepekatan vitamin C di dalam jus limau.Keputusan yang diperoleh dicatatkan di dalam jadual di bawah.

Type of solutionJenis larutan

Volume required to decolourise 1 ml of DCPIP solution (ml)Isi padu yang diperlukan untuk menyahwarnakan 1 ml larutan

DCPIP (ml)0.1% ascorbic acid 0.1% asid askorbik 1.2

Lime juice Jus limau 3 5

What is the concentration of vitamin C in lime juice?Apakah kepekatan vitamin C di dalam jus limau itu?

A 3.5 mg cm3

B 1.2 mg cm3

C 0.34 mg cm3

D 0.034 mg cm3

Section B / Bahagian B

1. Diagram 1.1 shows the stages of photosynthesis that occur in the chloroplast.Rajah 1.1 menunjukkan dua fasa fotosintesis yang berlaku dalam kloroplas.

Diagram 1.1 Rajah 1.1

(a) What are stages 1 and 2?Apakah fasa 1 dan 2?

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[2 marks / markah]

(b) Name the substances X and Y.Namakan bahan X dan Y.

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[2 marks/markah]

(c) Explain how an increase inHuraikan bagaimana peningkatan pada

(i) Light intensity affects the production of P in stage 1.Keamatan cahaya mempengaruhi penghasilan P dalam fasa 1.

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(ii) the amount of Q affects the production of Y in stage 2.kandungan Q mempengaruhi penghasilan Y dalam fasa 1.

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[4 marks/markah]

A farmer grows his vegetables in a greenhouse.Seorang petani menanam sayur-sayuran dalam rumah hijau.

Diagram 1.2 Rajah 1.2

(d) Explain how the fanner uses the gas heater to increase the rate of photosynthesis in his vegetables.Huraikan bagaimana petani tersebut menggunakan pemanas gas untuk meningkatkan kadar fotosintesis dalam tanamannya.

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[3 marks/markah]

(e) Suggest one advantage of growing plants in greenhouses.Cadangkan satu kelebihan menanam sayur-sayuran dalam rumah hijau.

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[1 mark / 1 markah]

2. Diagram 2.1 shows a food pyramid for a healthy diet.Rajah 2.1 menunjukkan piramid makanan untuk gizi seimbang.

Diagram 2.1 / Rajah 2.1

(a) (i) What is meant by a balanced diet?Apakah yang dimaksudkan dengan gizi seimbang?

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[1 mark / 1 markah]

(ii) Based on Diagram 2.1， state the food class in:Berdasarkan Rajah 2.1, nyatakan kelas makanan pada:

Level 2 / Aras 2 : ________________________________________

Level 3 / Aras 3 : ________________________________________[2 marks / 2 markah]

(iii) Which level of food should be taken in the least amount? Explain your answer.Aras makanan manakah yang perlu diambil dalam jumlah yang sedikit? Terangkan jawapan anda.

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[2 marks / 2 markah]

(b) (i) What is the appropriate diet menu for a pregnant mother?Apakah gizi yang sesuai bagi seorang ibu mengandung?

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[1 mark / 1 markah]

(ii) Give one reason for your answer in 2(b)(i).Berikan satu sebab bagi jawapan anda di 2(b) (i).

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(c) Diagram 2.2 shows a boy with one malnutrition condition.Rajah 2.2 menunjukkan seorang budak lelaki dengan suatu keadaan malnutrisi.

Diagram 2.2 / Rajah 2.2

Name the deficiency disease shown and state the cause.Namakan penyakit yang ditunjukkan dan nyatakan puncanya.

Disease / Penyakit : ______________________________________Cause / Punca :_______________________________________

[2 marks / 2 markah]

(d) Diagram 4.3 shows an obesed person.Rajah 4.3 menunjukkan seorang dewasa obes.

Diagram 2.3 / Rajah 2.3(i) Name one disease that can easily be contracted by an obesed person. Explain your answer.

Namakan satu penyakit yang mudah dihidapi oleh seorang yang obes. Terangkan jawapan anda.

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(ii) Suggest two ways for a person to overcome his obesity problem.Cadangkan dua cara bagaimana seseorang ini dapat mengatasi masalah obesitinya.

1: ________________________________________________________________________________________________

2: ________________________________________________________________________________________________

[2 marks / 2 markah]

Section C / Bahagian C

1. Describe one similarity and four differences between the alimentary canal of L and M.Jelaskan satu persamaan dan empat perbezaan antara salur alimentari L dan M. [5 marks / 5

markah]

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__________________ __________________ __________________ CHANG SUEN YEE ONG SOON MOI RITA SHANTHINI A/P D JAYARATNAM GURU SUBJEK GKMP SAINS & MATH PENGETUA