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JOM SCORE BIO

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BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KECEMERLANGAN

MODUL PERFECT SCORESEKOLAH BERASRAMA PENUH TAHUN 2011

BIOLOGY

Panel Penyedia:

PN. HASIMAH BT AZIT SEKOLAH SERI PUTERI CYBERJAYA. DATIN NORIDAH BT YANGMAN- SM SAINS TUNGKU SYED PUTRA, PERLIS. PN MAZINAH BT MUDA SM SAINS TENGKU MUHAMMAD FARIS PETRA, KELANTAN. TN HJ OTHMAN BIN HJ HASSAN SM SAINS MUAR, JOHOR. PN ZALINA BT MOHAMED KOLEJ ISLAM SULTAN ALAM SHAH, SELANGOR.

PERFECT SCORE BIOLOGY 2011

BAHAGIAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER KEMENTERIAN PELAJARAN MALAYSIA

PERFECT SCORE BIOLOGY

2011

Students Module

PREPARED BY: 1. PN HASIMAH BT AZIT SEKOLAH SERI PUTERI CYBERJAYA. 2. DATIN NORIDAH BT YANGMAN SM SAINS TUANKU SYED PUTRA, PERLIS. 3. PN MAZINAH BT MUDA - SM SAINS TENGKU MUHAMMAD FARIS PETRA, KELANTAN. 4. TN HJ OTHMAN BIN HJ HASSAN SM SAINS MUAR, JOHOR. 5. PN ZALINA BT MOHAMED KOLEJ ISLAM SULTAN ALAM SHAH, KLANG.

1

PERFECT SCORE BIOLOGY 2011Paper 2 Section A: Structural Questions 1. Diagram 1.1 shows a somatic cell of an insect undergoing meiosis. Process X R: Marks Student notes

Q: S:.......

Diagram 1.1 (a) Label Q, R and S in Diagram 1.1. [3 marks]

1(a)

(b)

In the space below draw chromosome behaviour during metaphase I and metaphase II.

Metaphase I

Metaphase II 1(b) [2 marks]

2

PERFECT SCORE BIOLOGY 2011(c) Explain how the process X involves in producing variation in organisms. [3 marks] Diagram 1.2 shows the formation of an ovum. 1(c)

Oogonium (2n)

Primary oocyte (2n)

MSecondary oocyte (n) First polar body (n)

NOvum (n) Second polar body (n) Diagram 1.2 (d)(i) What are process M and N? M :. N :.. [2 marks] 1(d)(i)

(d)(ii)

Describe the process that occurs if a sperm present at process N. [2 marks] 1(d)(ii)

3

PERFECT SCORE BIOLOGY 20112. Diagram 2 shows the digested food is being carried from small intestine to the liver and body cell.

Diagram 2 (a)(i) Name process X at the villus. . [1 mark] (ii) Explain ONE adaptation of the villus for the process in (a)(i). . . (b) [2 marks] Vessel P and Q transport digested food from the villi to the liver and body cells respectively. Name vessel P and vessel Q. P : Q: .. [2 marks] 2(b) 2(a)(ii) 2(a)(i)

4

PERFECT SCORE BIOLOGY 2011(c) Explain what happens to the excessive amino acids in the liver? . . [2 marks] (d) Digested food are used by the body cells for growth, to form complex compounds or structural components. State how lipids, amino acid and glucose are used in the cell. . . . [3 marks] (e) Explain what will happen to a person if his liver receives insufficient insulin from the pancreas. .. .. .. [2 marks] 2(e) 2(d) 2(c)

3.

Diagram 3 shows the structure of respiratory system in human.

Bronchus P

Alveolus

Blood capillary Cells

Diagram 3

5

PERFECT SCORE BIOLOGY 2011(a) Based on Diagram 3, explain one adaptation of alveolus for efficient gases exchange. ........................................................................................................................ ........................................................................................................................ [2 marks] 3(b)(i) 3(a)

(b)(i)

Name P .. [1 marks]

(b)(ii)

Explain the role of P to prevent dirt and bacteria from entering the alveolus. . . [2 marks] 3(b)(ii)

(c)(i)

On Diagram 3, draw labelled arrow ( Blood flow Oxygen diffusion Carbon dioxide diffusion

) to show the direction of

[3 marks] Blood flow= arrow from blood capillary to other side of blood capillary Oxygen diffusion = arrow from alveolus to blood capillary // arrow from blood capillary to cells 3(c)(i) Carbon dioxide diffusion = arrow from blood capillary to alveolus // from cells to blood capillary (c)(ii) Explain why the diffusion of oxygen occur at the alveolus. .. .. .. [2 marks] (d) A hard mass of food passing down the oesophagus might indirectly interrupt the air supply to lung by pressing on P. Explain how P overcome this problem. ........................................................................................................................ ........................................................................................................................ [2 marks] 3(d) 3(c)(ii)

6

PERFECT SCORE BIOLOGY 2011Structural Questions 4. Diagram 4.1 shows a cross section of a leaf. . Marks Student notes

P: ________________

Q: _______________ __________________ ____

Diagram 4.1 (a)(i) On Diagram 4.1 label the structures P and Q. [2 marks] 4(a)(i)

(a)(ii)

Explain the stage of cell organization of the leaf . . . . [2 marks] 4(a)(ii)

(b)(i)

Q are important structure in plant transport system. Explain how structure Q in the leaf help in plant transportation. ..................................................................................................................... ..................................................................................................................... ..................................................................................................................... [2 marks] 4(b)(i)

(b)(ii)

Name the process occurs in (b)(i). ..................................................................................................................... [1 marks] 4(b)(ii)

7

PERFECT SCORE BIOLOGY 2011Diagram 4.2 shows a longitudinal section of structure Q.

S: R: . ____________ .___________ __

Diagram 4.2 4(b)(iii) )

(b)(iii)

On Diagram 4.2 label the structures R and S. [2 marks]

(c)

R plays an important role in helping S in the plant transportation. Predict what happen to the plant if structure R is not presence ? .. .. .. [2 marks] Diagram 4.3 (a) and 4.3 (b) shows a student removed the ring bark from the branch of a woody plant. 4(b)(iii) )

4(c)

Diagram 4.3(a)

Diagram 4.3(b)

8

PERFECT SCORE BIOLOGY 2011(d) Predict the effect of removing the ring bark from the branch. Explain your answer. .. .. [2 marks] 5. Diagram 5 shows three types of neurones in the human body. 4(d)

P Q X

R Diagram 5 (a) Name neurone P and neurone Q. P: ........ Q :.... [2 marks] (b)(i) Name structure X. .. [1 mark] (b)(ii) Explain how the transmission of nerve impulse across the X. .. .. [3 marks] (c) Describe the pathway in the reflex action involved the three neurons above. .. .. .. [3 marks] 5 (c) 5 (b)(ii) 5 (b)(i) 5 (a)

9

PERFECT SCORE BIOLOGY 2011(d) A dog suddenly barks and chases you. Your heartbeat increases and your palms become sweaty. You feel so scared and run away.

Based on the above statement describe how endocrine system is involved in the fight and flight situation. [3 marks] 6. Diagram 6 .1 shows a part of human brain, kidney and a nephron which involve in the process of osmoregulation. 5 (d)

Diagram 6.1 (a) What is the function of kidney in osmoregulation ? .. ....... [2 marks] 6(a)

10

PERFECT SCORE BIOLOGY 2011(b)(i) Individual Y drinks excessive water. What happen to the blood osmotic pressure in his body? .. [ 1 mark ] (b)(ii) Explain how hypothalamus and gland M response to the condition in (b)(i) ? [ 2 marks] (c) If individual Y eating a very salty food, the adrenal gland will release less hormone Q . What is hormone Q and explain how hormone Q involved in the mechanism to restore the osmotic pressure of the blood back to normal levels. . .. .. .. [ 3 marks ] (d) Explain what happen to the filtrate that flows from glomerulus to collecting duct? [2 marks] 6(d) 6(c) 6(b)(ii) 6(b)(i)

11

PERFECT SCORE BIOLOGY 2011Kidney function may be impaired by excessive blood loss, certain poisons or infectious diseases which can lead to kidney failure. Diagram 6.2 shows a haemodialysis machine which can save a kidney patients life.

Diagram 6.2 (e) Explain how the machine operates. . . [ 3 marks ] 6(e)

12

PERFECT SCORE BIOLOGY 20117. Diagram 7 shows the changes of four type of hormone which control the menstrual cycle and follicle development in the ovaries.

L

M

N

Diagram 7 (a) Based on Diagram 7, name the hormone labelled P and R. P : .............................................................................................................. R : .............................................................................................................. [2 marks] (b) Complete the follicle development in boxes L and N in Diagram 7. [2 mark] (c) Based on Diagram 7, explain the relationship between structure M and the level of hormone S. ..................................................................................................................... ..................................................................................................................... ..................................................................................................................... ..................................................................................................................... [3 marks] 7(c) 7(b) 7(a)

13

PERFECT SCORE BIOLOGY 2011(d) If fertilisation occurred, the level of hormones S is maintained and the pregnancy is proceed. Explain the importance of hormone S. ..................................................................................................................... ..................................................................................................................... ........................................................