Sc Paper 2 (PMR)

SEKOLAH ISLAM ADNIFirst Semester Examination 2011Science - Paper 2Secondary 3 (KBSM)

Section A

[40 marks]

Answer all questions

1 Diagram 1 shows some examples of the organization of cells in the human body.

Pg 102

Diagram 1

(a) (i) Which of the diagram above is an organ?

Name the organ in the box provided. [1 mark]

(ii) Circle the words in the box below to show two other examples of organs

[2 marks]

1

Ovum Muscle Nose Lungs


(b) Draw lines to match each type of cell with its functions.

Cell Function

Carries oxygen to all parts of the body

Pg 103

Sends information in the body

Destroys bacteria entering the body

[3 marks]

2


2 (a) Diagram 2.1 shows the apparatus set-up to investigate and identify the stimuli

detected by the plants

pg 133

Diagram 2.1

(i) In the coloured region in Diagram 2.1, draw an arrow to show the direction of

growth of the shoots after 5 days. [1 mark]

(ii) Give one reason for the answer in 2 (a)(i).

…………………………………………………………………………………

[1 mark]

(iii) What type of tropism is shown by the shoots?

…………………………………………………………………………………

[1 mark]

(iv) State one importance of the tropism in 2(a)(iii) to plants

…………………………………………………………………………………

[1 mark]

3


(b) Diagram 2.2 show the germinated seeds in three different beakers Q, R and S.

Diagram 2.2

(i) Why do roots Q and R grow towards the directions shown in Diagram 2.2

………………………………………………………………………………

[1 mark]

(ii) Why is the growth of the roots in beaker S known as positive

geotropism?

………………………………………………………………………………

[1 mark]

4


3 (a) Diagram 3 shows the process of water treatment in a treatment plant.

Pg 134

Diagram 3

(i) State the importance of water treatment to human daily usage

………………………………………………………………………………..

………………………………………………………………………………..

[2 marks]

5


(ii) Why is the water from the river collected and stored in P?

…………………………………………………………………………………….

……………………………………………………………………………………..

[2 marks]

Why is chlorine added in the chlorination tank?

………………………………………………………………………….

…………………………………………………………………………..

[2 marks]

(ii) Explain the function of the chemical added in the sedimentation tank.

…………………………………………………………………………..

…………………………………………………………………………..

[2 marks]

(b) If the water is pure.

(i) State the boiling point of the water.

…………………………………………………………………………

[1 mark]

(ii) Name the chemical used to test the purity of the water.

…………………………………………………………………………

[1 mark]

6


4 Diagram 4 shows the activities that produce a type of energy.

Pg 172

Diagram 4.1

(a) State the type of energy produced by all the activities.

….……………………………………………………………………………..

[1 mark]

(b) Diagram 4.2 shows the stages of a burning candle

Pg 173

Diagram 4.2

(i) State the changes in state of the candle.

…………………………………………………………………………..

7


[1 mark]

(ii) State the physical process of P.

Explain what happens to the movement of the candle particles during

process P.

………………………………………………………………………

………………………………………………………………………

[2 marks]

(iii) Explain what happens to the arrangement of the water particles when

water is put in the freezer to form ice cubes.

………………………………………………………………………

………………………………………………………………………

[2 marks]

8


5 Diagram 5 shows the structure of an alveolus.

The process of gaseous exchange happens between the alveolus and the blood

capillaries.

Diagram 5

(a) Name the gases involved.

…………...…………………………………………………………………………

[2 marks]

(b) Name the process that allows the gases to pass through the capillaries.

Give one characteristic of the alveolus which allows the process to

happen.

……………………………………………………………………………………..

……………………………………………………………………………………..

[2 marks]

(c) Which blood cell is involved in the transport of the gases?

……….…………………………………………………………………………..

[1 mark]

(d) Explain how the gases are transported in the blood cell.

………..………………………………………………………………………….

…………..……………………………………………...……………………….. 9


[2 marks]

6 Diagram 6 shows the reproductive system of a human.

Pg 34

Diagram 6

(a) Label three of the following structures in Diagram 6

[3 marks]

(b) State the function of the following organ

Scrotum : ………………………………………………………………

Sperm duct : …………………………………………………………..

[2 marks]

10

Urinary bladder Sperm duct scrotum


Section B

[20 marks]

Answer all questions

7 Diagram 7 shows four types of cells J, K, L and M which are found in living

organisms.

Diagram 7

Based on your observations in Diagram 7;

(a) State one characteristic of cells J, K, L and M.

J: ……………………………………………………………………………….

K………………………………………………………………………………..

L: ……………………………………………………………………………….

M: .…..………………………………………………………………………….

[4 marks]

11


(b) Classify cells K, L, M and N into two groups based on their common

characteristics.

Common

characteristics

Name of

cells

[4 marks]

12

K, L, M and N


8 (a) Figure 8.1 shows two plants P & Q.

Pg 146

Plant P Plant Q

Figure 8.1

(i) Plant P is watered but plant Q is not watered.

State one inference about the plant.

…………………………………………………………………………..

…………………………………………………………………………..

[1 mark]

(ii) What happens to plant P and plant Q if the experiment is carried out

for six days?

…………………………………………………………………………..

…………………………………………………………………………..

[1 mark]

13


(b) Diagram 8.2 shows an experiment to study the factors the affect the rate of

transpiration. The apparatus were left for three hours in three different

conditions J, K, and L.

14


Diagram 8.2

Table 8.3 shows the positions of the air bubbles in J and K

Record the position of the air bubble in L in Table 8.3

[1 mark]

Table 8.3

15

Surface Reading of spring balance / N

J 6.6

K 7.8

L


(c) Based on the reading in Table 8.3, draw a bar chart to show the readings of the

air bubble in the three different condition.

Position of air bubbles/cm

Situation

16


[2 marks]

(d) (i) State the variables involved in this experiment,

[3 marks]

(ii) What is the objective of the experiment?

…………………………………………………………………………..

…………………………………………………………………………..

[2 marks]

(iii) State the relationship between the position of the air bubble and the

condition.

…………………………………………………………………………..

…………………………………………………………………………..

[2 marks]

END OF QUESTION PAPER

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Manipulated

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Responding

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Fixed

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Sc Paper 2 (PMR)