Monthly Test 3Biology Form 4

Name: ____________________________ Form: 4S( ) Marks: ________

Answer the following questions. (30%) 1. Diagram 1 shows four stages of mitosis in an animal cell.

Rajah 1 menunjukkan empat peringkat mitosis di dalam satu sel haiwan.

Diagram 1 / Rajah 1

(a) (i) Arrange the stages in Diagram 1 according to the correct sequence of the mitotic process.Susun peringkat-peringkat dalam Rajah 1 mengikut susunan peringkat mitosis yang betul. (1 mark)

(ii) Name the stages labelled W to Z.Namakan peringkat-peringkat berlabel W hingga Z. (4 marks)

W: ________________________________________

X: _________________________________________

Y: _________________________________________

Z: _________________________________________

(b) Name the type of cells in humans where mitosis takes place.Namakan jenis sel pada manusia di mana mitosis berlaku. (1 mark)

_________________________________________________________________________________________________

(c) Give three examples of cells named in (b).Berikan tiga contoh sel yang dinamakan di (b). (3 marks)

i. ______________________________________________________________________________________________

ii. ______________________________________________________________________________________________

iii. ______________________________________________________________________________________________

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(d) Give two significance of mitosis.Berikan dua kepentingan mitosis. (2 marks)

i. ______________________________________________________________________________________________

______________________________________________________________________________________________

ii. ______________________________________________________________________________________________

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2. Diagram 2 shows the cell cycle of an organism.Rajah 2 menunjukkan kitar sel suatu organisma.

Diagram 2 / Rajah 2

(a) Name the major phases X and Y of the cell cycle.Namakan fasa utama X dan Y bagi kitar sel itu. (2 marks)

X: _________________________________________

Y: _________________________________________

(b) Name the phases labelled P, Q, R, S and T.Namakan fasa-fasa berlabel. P, Q, R, S and T. (5 marks)

P: _________________________________________

Q: _________________________________________

R: _________________________________________

S: _________________________________________

T: _________________________________________

(c) The phase labelled S is divided into four stages. Name the four stages.Fasa yang dilabel sebagai S terbahagi kepada empat peringkat. Namakan empat peringkat tersebut. (4 marks)

i. ______________________________________________________________________________________________

ii. ______________________________________________________________________________________________

iii. ______________________________________________________________________________________________

iv. ______________________________________________________________________________________________

(d) State one significance of phase Y in unicellular organisms.Nyatakan satu kepentingan fasa Y dalam organisma unisel. (1 mark)

_________________________________________________________________________________________________

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3. Diagram 3 shows a pair of homologous chromosomes.Rajah 3 menunjukkan sepasang kromosom homolog.

Diagram 3 / Rajah 3

(a) Name the parts labelled X and Y.Namakan bahagian yang berlabel X dan Y. (2 marks)

X: _________________________________________

Y: _________________________________________

(b) Name the process of the pairing of homologous chromosomes shown above.Namakan proses di mana kromosom homolog berpasangan seperti yang ditunjukkan di atas. (1 mark)

___________________________________________________________________________________________________

(c) Name the process where X is formed.Namakan proses di mana X terbentuk. (1 mark)

__________________________________________________________________________________________________

(d) Give two results of the process named in (c).Berikan dua hasil daripada proses yang dinamakan di (c). (2 marks)

i. ______________________________________________________________________________________________

ii. ______________________________________________________________________________________________

(e) Name the stage of meiosis where the process named in (c) takes place.Namakan peringkat meiosis di mana proses di (c) berlaku. (1 mark)

__________________________________________________________________________________________________

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Answer:

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