paper 2 kedah (stpm)

8/8/2019 Paper 2 Kedah (STPM)

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CONFIDENTIAL*/SULIT*

STPM 964/2 [Turn over (Lihat sebelah)

*This question paper is CONFIDENTIAL until the examination is over. CONFIDENTIAL**Kertas soalan ini SULIT sehingga peperiksaan kertas ini tamat. SULIT*

Identity card number Centre number/Index number..(No. Kad Pengenalan) (No. Pusat/Angka Giliran)

PEPERIKSAAN PERCUBAAN STPM 2010

Anjuran Bersama

JABATAN PELAJARAN NEGERI KEDAH DARULAMAN

DANPERSIDANGAN KEBANGSAAN PENGETUA-PENGETUA

SEKOLAH MENENGAH MALAYSIA (PKPSM) KEDAH

Instructions to candidates:

DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE TOLD

TO DO SO.

Answer all questions in Section A. Write your answers in the spaces

provided.

Answer any four questions in Section B. Write your answers on the answersheets provided. Begin each answer on a fresh sheet of paper and arrange your

answers in numerical order. Tie your answer sheets to this question paper.

Answers should be illustrated by large and clearly labelled diagrams

wherever suitable.

Answers may be written in either English or Bahasa Malaysia.

Arahan kepada calon :

JANGAN BUKA KERTAS SOALAN INI SEHINGGA ANDA

DIBENARKAN BERBUAT DEMIKIAN.

Jawab semua soalan dalam Bahagian A. Tulis jawapan anda dalam ruang

yang disediakan.

Jawab mana-mana empat soalan dalam Bahagian B. Tulis jawapan anda

pada helaian jawapan yang dibekalkan. Mulakan setiap jawapan pada helaian

kertas yang baharu dan susun jawapan anda mengikut tertib berangka. Ikat

helaian jawapan anda bersama kertas soalan ini.

Jawapan hendaklah disertai gambar rajah yang besar dan mempunyai label

yang jelas di mana-mana yang sesuai.

Jawapan boleh ditulis dalam bahasa Inggeris atau Bahasa Malaysia

For examiners use

(Untuk kegunaan

pemeriksa)

Section A

(Bahagian A)

1

2

3

4

Section B

(Bahagian B)

Total(Jumlah)

This question paper consists of 19 printed pages and 1 blank page.

(Kertas soalan ini terdiri daripada 19 halaman bercetak dan 1 halaman tidak bercetak)

JABATANPELAJARANNEGERIKEDAHJABATANPELAJARANNEGERIKEDAHJABATANPELAJARAN




JABATANPELAJARANNEGERIKEDAHJABATANPELAJARAN NEGERIKEDAHJABATANPELAJARAN

JABATANPELAJARANNEGERIKEDAHJABATANPELAJARANNEGERIKEDAHJABATANPELAJARANJABATANPELAJARANNEGERIKEDAHJABATANPELAJARANNEGERIKEDAHJABATANPELAJARAN








964/2PERCUBAAN

STPM 2010

BIOLOGY (BIOLOGI)PAPER 2 (KERTAS 2)

STRUCTURE AND ESSAY (STRUKTUR DAN ESEI)

Two and a half hours (Dua jam setengah)


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*Thi questi paperis C TIAL untilthe examinati n is over. CONFIDENTIAL

i A [40 marks]

Answ rallquesti ns in t is secti n.1 The diagram below shows a structure of an animalcell as seen under an electron

microscope.

(a) Name the organelles labelled A, D and E.

A :........

D :....................

E :........

[3 marks]

(b) (i) Name the model which describes structure C.

.....[1 mark]

(ii) State the main componentthat makes up structureC.

.....

[1 mark]

A

B

C

D

E


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*Kertas soalan ini SULIT sehingga peperiksaan kertas initamat. SULIT

Bahagian A [40 markah]

awab semuasoalan dalam bahagian ini.

1 Rajah di bawah menunjukkan struktur sel haiwan yang diperhatikan di bawah mikroskop

elektron.

(a) Namakan organel yang berlabel A, D dan E.

A :........................

D :....................

E :............

[3 markah]

(b) (i) Namakan model yang digunakan untuk menerangkan struktur C.

..................[1 markah]

(ii) Nyatakan komponen utama yang membentuk strukturC.

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

[1 markah]

A

B

C

D

E


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*This question paper is CONFIDENTIAL until the examination is over. CONFIDENTIAL*

(c) Cholesterol is found in structure C. State two roles of cholesterol in the structure.

......

..

..

[2 marks]

(d) (i) Name organelle B.

......

[1 mark]

(ii) Give two functions of organelle B.

..

..

..

[2 marks]


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*Kertas soalan ini SULIT sehingga peperiksaan kertas ini tamat. SULIT*

(c) Terdapat kolestrol pada struktur C. Nyatakan dua peranan kolestrol pada struktur

tersebut.

......

..

..

[2 markah]

(d) (i) Namakan organel B.

.....

[1 markah]

(ii) Berikan dua fungsi organel B.

..

..

..

[2 markah]


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2 The diagram below shows the main stages of aerobic respiration.

(a) (i) Name the reaction in stage A.

............................................................................................................................. ............................[1 mark]

(ii) State precisely where the reactions in stages A, B and C occur in the cell.

Stage A :.................................................................................................................... ......................

Stage B :.................................................................................................. ..................... ...................

Stage C :..................................................................................................................... .....................

[3 marks]

(b) Name substance X and state the number of carbon.

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

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

[2 marks]


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2 Rajah di bawah menunjukkan peringkat-peringkat utama dalam respirasi aerobik.

(a) (i) Namakan tindak balas di peringkat A.

............................................................................................................................. ............................[1 markah]

(ii) Nyatakan dengan tepat di mana tindak balas peringkat A, B dan C

berlaku di dalam sel.

Peringkat A :............................................................................................................................... ....

Peringkat B :..................................................................................... ..............................................

Peringkat C :............................................................................................................................. ......

[3 markah]

(b) Namakan bahan X dan nyatakan bilangan karbonnya.

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

........................................................................................... ...............................................................[2 markah]


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(c) Oxygen is needed in certain stages involved in the breakdown of glucose.

(i) Name the stage in which oxygen is needed.

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

[1 mark]

(ii) State the function of oxygen in the stage named in (c) (i).

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

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

[1 mark]

(d) State how many molecules of ATP are formed at stage A and B when a

molecule of glucose is used in the aerobic respiration.

Stage A :..................

Stage B :..............

[2 marks]


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(c) Oksigen diperlukan pada peringkat tertentu dalam penguraian glukosa.

(i) Namakan peringkat di mana oksigen diperlukan.

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

[1 markah]

(ii) Nyatakan fungsi oksigen yang dinamakan pada (c) (i).

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

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

[1 markah]

(d) Nyatakan bilangan molekul ATP yang terbentuk pada peringkat A dan B

apabila satu molekul glukosa digunakan dalam respirasi aerobik.

Peringkat A :...........................

Peringkat B :.......................

[2 markah]


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*This question paperis C NFIDENTIAL untilthe examination is over. CONFIDENTIAL

3 The diagram below shows the mechanism ofthe action of non steroid hormone,adrenaline.

(a) (i) Name substances A, B and C.

A :...................................................................................................................................................

B :............................................................................... ....................................................................

C :............................................................................. ........................... ...........................................

[3 marks]

(ii) Explain the functions of cAMP as a second messenger.

....

....

....[2 marks]

series of

chemicalreaction

N

A

B

adrenaline

CcAMP

inactive enzyme

inactive enzyme

plasma membrane

oftarget cell (liver cell)

cytoplasm

inactive protein

kinase

active

enzyme

active

enzyme

active

enzymeglycogen

glucose

phosphate

+ 2Pi

ATP


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3 Rajah di bawah ini menunjukkan mekanisme tindak balas hormon bukan steroid,adrenalin.

(a) (i) Namakan bahan A, B dan C

A :............................ ............................................................. ...........................................................

B :............................................................................................................. ...................... ................

C :.............................................................................. .....................................................................

[3 markah]

(ii) Terangkan fungsi cAMP sebagai pengutus kedua.

......

......

......[2 markah]

siritindak

balaskimia

N

A

Badrenalin

C

cAMP

enzim tak aktif

enzim tak aktif

membran plasma sel

sasaran (sel hati)

sitoplasma

protein kinasetak aktif

enzim

aktif

enzim

aktif

enzim

aktifglikogen

glukosa

fosfat

+ 2Pi

ATP


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(b) (i) Name the series of chemical reactions indicated by N?

......

[1 mark]

(ii) Explain the significance of reaction N.

......

......

......

[2 marks]

(c) What is the function of adrenaline in this series of reaction?

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

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

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

[2 marks]


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(b) (i) Namakan siri tindak balas kimia yang ditunjukkan oleh N?

......

[1 markah]

(ii) Terangkan kepentingan siri tindak balas N.

......

......

......[2 markah]

(c) Apakah fungsi adrenalin dalam siri tindak balas ini?

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

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

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

[2 markah]


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4 (a) (i) Define holozoic nutrition.

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

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

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

(ii) By using an example, explain what is detritivores.

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

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

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


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4 (a) (i) Berikan definisi nutrisi holozoik.

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

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

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

[2 markah]

(ii) Dengan menggunakan satu contoh, terangkan maksud detritivor.

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

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

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

[2 markah]


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*This question paperis C NFIDENTIAL untilthe examination is over. CONFIDENTIAL

(b) The diagram below shows some ofthe cells which form the lining ofthe mammalian

smallintestine.

(b) Name the type of epithelialtissue Y.

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

[1 mark]

(c) (i) Name the following :

Cell Z :............................................................................................................................ .

Secretion X : ................................ .......................................................... .

Structure A : ....................................................................................................... .[3 marks]

(ii) State the functions of X and A in the alimentary canal.

.........

.....

[2 marks]

B

Z

Y

AX


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(b) Rajah di bawah menunjukkan sel sel yang membentuklapisan usus kecil mamalia.

(b) Namakanjenis tisu epithelium Y ?

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

[1 markah]

(c) (i) Namakan:

Sel Z :............................................................................................................. ..

Rembesan X :.................................... ................................................... ....................

Struktur A :..................................................................................................................... .[3 markah]

(ii) Nyatakan fungsi X and A dalam salur alimentari.

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

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

[2 markah]

BB

Z

Y

AX


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Section B [60 marks]

Answer any four questions in this section.

5 Describe the effect of HIV infection on the immune system and its response. [15 marks]

6 (a) Describe the functions of the mammalian placenta and amnion. [10 marks]

(b) Suggest why leakage of blood in either direction across the placenta might harm the

foetus. [5 marks]

7 (a) State the method of measuring growth. Discuss the problems encountered when

growth is being measured. [8 marks]

(b) What is meant by annualplant? Sketch and explain the growth curve forannualplant.[7 marks]

8 a) What is meant by chromosomal mutation? [3 marks]

b) State and explain the types of the structural chromosomal mutation. [12 marks]

9 (a) Explain what is meant bygenetic screening. [3 marks]

(b) Describe two methods ofgenetic screeningand its usage. [9 marks]

(c) State the limitations and possible drawbacks ofgenetic screeningmethod. [ 3 marks]

10 (a) Discuss why a virus cannot be classified as a prokaryote or eukaryote. [8 marks]

(b) Describe how bryophytes are adapted to live on land. [7 marks]


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Bahagian B [60 markah]

Jawab mana-mana empatsoalan dalam bahagian ini.

5 Terangkan kesan jangkitan HIV ke atas sistem keimunan dan responsnya. [15 markah]

6 (a) Terangkan fungsi-fungsi plasenta dan amnion mamalia. [10 markah]

(b) Cadangkan mengapa kebocoran darah merentasi plasenta dalam mana-mana arah

boleh mengancam fetus. [5markah]

7 (a) Nyatakan kaedah-kaedah untuk mengukur pertumbuhan. Bincangkan masalah-

masalah yang boleh dihadapi apabila mengukur pertumbuhan.

[8 markah]

(b) Apakah yang dimaksudkan dengan tumbuhantahunan. Lakarkan dan jelaskanlengkung pertumbuhan untuktumbuhantahunan. [7 markah]

8 (a) Apakah dimaksudkan dengan mutasi kromosom? [3 markah]

(b) Nyatakan dan jelaskan jenis-jenis mutasistrukturkromosom. [12 markah]

9 (a) Jelaskan apa yang dimaksudkan denganpenyaringan genetik. [3 markah]

(b) Terangkan dua kaedah penyaringan genetikdan kegunaannya. [9 markah]

(c) Nyatakan kekangan dan kemungkinan masalah yang dihadapi untuk kaedahpenyaringan genetik. [3 markah]

10 (a) Bincangkan mengapa virus tidak boleh dikelaskan sebagai prokariot atau eukariot.

[8 markah]

(b) Terangkan bagaimana briofit mengadaptasi untuk hidup di atas daratan. [7 markah]

paper 2 kedah (stpm)

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