SECTION A

[20 marks]
Answer all questions.
This section consists of 20 questions. Each question is followed by four alternative answers
A, B, C and D. Choose the best answer. Mark the answer choices in the answer sheet
provided.

1. The diagram below shows an action by a boy when dust enters the nose.

What is the correct direction of impulse pathway for the action in the diagram above?

A.

B.

C.

D.

2. The diagram below shows a situation in the playground.

What type of hearing allows Razi to detect Amin's position?

A. Stereophonic
B. Monophonic
C. Monocular
D. Stereoscopic

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3. The diagram below shows the part X of the human tongue.

Part X

Which of the following is the correct match between the part X of the tongue
and the taste of food?

A. Sugar
B. Bitter gourd
C. Salt
D. Vinegar

4. Which of the following statements is about function of stoma ?

I A place for gas exchange

II Control size of stomatal pore
III Absorb sunlight for photosynthesis
IV Allows water vapor released from plants

A. I and II
B. II and III
C. III and IV
D. I and IV

5. The diagram below shows condition of stoma at night.

Stomata pore
Guard cell

Why the stoma condition as shown in diagram?

A. The guard cells becomes turgid

B. Water diffuses into the guard cells
C. Glucose level in guard cells increases
D. The guard cells becomes flaccid

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6. The diagram below shows a longitudinal section of an eye with a defective vision.

What causes the defective vision?

A. The eyeball is too short
B. The eyeball is too long
C. The eye lens is too thin
D. The size of the pupil is too small

7. The diagram below shows two types of eye defects.

X Y

What types of eye defects are represented by X and Y?

X Y
A Short sightedness Long sightedness
B Astigmatism Long sightedness
C Long sightedness Short sightedness
D Short sightedness Astigmatism

8. The diagram below shows the visual field of an animal.

Which statement is correct about this visual field?

A. Produces a three-dimensional image
B. The visual field is narrow
C. An eagle has this type of vision
D. This animal has monocular vision

9. Which of the following sensory organs can detect chemical substances?

A. Eye and nose
B. Tongue and skin
C. Nose and tongue
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 D. Nose and ear
10. The information below shows the function of structure X and Y of the human ear.

X : Amplifies sound vibration

Y : Sends impulses to the brain

What are represented by structures X and Y?

X Y
A Eardrum Auditory nerve
B Ossicles Cochlea
C Ear canal Ossicles
D Ossicles Auditory nerve

11. The diagram below shows the structure of the human skin.

Which of the parts labelled A,B,C or D is the pressure receptor?

12. Which part of the plant shows positive geotropism?

A. Leaf
B. Root
C. Shoot
D. Flower

13. The following statements are about the transportation of oxygen in the blood.

P : Oxygen combines with haemoglobin to form oxyhaemoglobin

Q : Oxyhaemoglobin decomposes to release oxygen
R : Oxyhaemoglobin reaches the body tissues
S : Oxygen diffuses through the alveoli into the blood capillaries

Which of the following is the correct sequence of the transportation of oxygen in

blood?
A. P, S, Q, R
B. Q, R, P, S

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 C. S, P, Q, R
D. S, P, R, Q
14. The diagram below shows part of the human respiratory system.

Which of the following condition happens when structure P becomes flat?

A. Volume of the thoracic cavity increases

B. Air in the lungs is forced out
C. Air pressure in the thoracic cavity increases
D. The ribcage move downwards and inwards

15. The diagram below shows the smell pathway.

Chemical vapour Impulse

Type of
smell

X Y
A Brain Smell receptor
B Smell receptor Brain
C Taste receptor Brain
D Taste receptor Smell receptor

16. Which of the following happens when we inhale?

A. Our chest moves down

B. The volume of the thoracic cavity decreases
C. The diaphragm becomes flat
D. The air pressure in the thoracic cavity is higher than the atmospheric
pressure

17. Why is the wall of alveolus very thin?

A. Easier for gaseous exchange

B. Easier for blood transfusion

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 C. Easier for blood diffusion
D. Easier for oxyhaemoglobin absorption

18. Which of the following substances causes white cotton to turn brownish when
cigarette smoke passes through it?

A. Acidic gases B. Cigarette tar

C. Nicotine D. Carcinogen

19. The diagram below shows the structure of human heart.

What are the structure labelled P and Q?

P Q
A Tricuspid valve Bicuspid valve
B Bicuspid valve Semilunar valve
C Tricuspid valve Semilunar valve
D Bicuspid valve Tricuspid valve

20. The following information shows the characteristics of blood vessel X.

• Thin wall
• Has valve
• Large lumen

Which of the following is blood vessel X?

A. Artery
B. Capillary
C. Vein
D. Aorta

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 Untuk
Kegunaan
Pemeriksa

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 Section B
[20 marks]
Answer all questions

1 (a) Diagram 1 below shows the pathway of an impulse in a voluntary action.

Diagram 1

Label X and Y.
[2 marks]

(b) Diagram 2 below shows the pathway of impulse in an involuntary action (reflex
action.
R:

Effector

S:

Diagram 2
Label R and S.
[2 marks]

2 (a) Label the type of sight for the animal below.

[2 marks]

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 (b) What lenses can fix the defects below by choosing the correct word given?

Concave lens Convex lens Cylindrical lens

Image formed Image formed

Near
Far object object

[2 marks]

3 (a) Diagram 3 below shows the structures on a leaf surface.

Guard cell Stomatal pore Epidermal cell

XX ::

Y: Y :

Diagram 3

Label the structures X and Y by choosing the correct word given.

[2 marks]

(b) Underline the correct answers.

During the day, water diffuses into the guard cells by ( osmosis / diffusion ).
This causes both guard cells to curve and the stomatal pore to be
( closed / opened ).
[2 marks]

4 (a) Underline the correct answers.

(i) ( Oxygenated / Deoxygenated ) blood is carried from the body to the lungs.

(ii) When the blood arrives into the tissue or cell, oxyhaemoglobin is
( decomposed, released ) and released oxygen.

[2 marks]

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 (b) Circle the correct answer.

The intercostal muscles relax and the rib cage Exhalation Inhalation
becomes smaller

The thoracic cavity becomes larger due to the Exhalation Inhalation

movement of the rib cage and diaphragm

[2 marks]

5 (a) Mark ( √ ) for correct statement and ( X ) for incorrect statement.

(i) The human blood circulation system is a circulatory system

consisting of two cycles.
(ii) The heart of the fish is made up of three spaces

(iii) The mammal's heart has four spaces and two separate
spaces

[2 marks]

(b) Diagram 5 below shows the structure of a human heart.

Label structures P and Q found in the human heart by choosing the words
given correctly.

P:
Q:

Diagram 5

Left ventricle Right ventricle

Right atrium Septum

[2 marks]

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 Section C
[60 marks]
Answer all questions.

1. (a) Diagram 1.1 shows parts of the human eye.

Diagram 1.1

(i) Name the structures X and Y.

X : ________________________________________________________________

Y : ________________________________________________________________
[2 marks]

(ii) What is the function of structure W and Z?

W : ________________________________________________________________

Z : _________________________________________________________________
[2 marks]

(iii) Between structures X and Y, which is more sensitive to light?

___________________________________________________________________
[1 mark]
(b) Diagram 1.2 shows a squirrel is being chased by a cat.

Diagram 1.2

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 (i) What is the type of vision of the squirrel in diagram 1.2?

___________________________________________________________________
[1 mark]

(ii) Based on your answer in 1(b)(i), state how the vision helps the squirrel to save itself.

____________________________________________________________________
[ 1 mark]

(iii) State one example of another animal that has the same type of vision as the squirrel.
____________________________________________________________________
[1 mark]

2. (a) Diagram 2.1 shows an experiment that is carried out by a group of students to study
the response of plant towards stimuli.

Diagram 2.1

(i) What is the stimulus that is being studied in this experiment?

____________________________________________________________________
[1 mark]

(ii) What is the type of tropism studied in this experiment?

____________________________________________________________________
[1 mark]

(iii) What is the function of anhydrous calcium chloride use in the experiment above?

____________________________________________________________________
[1 mark]

(iv) Draw the movement of roots in beaker X and beaker Y after 5 days in Diagram 2.1.
[2 marks]

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 (v) What is the importance of the tropism state in (a)(ii) for the plant?

____________________________________________________________________
[1 mark]
(b) Diagram 2.2 shows a plant in a pot.

Diagram 2.2
(i) What is the type of tropism of shoot towards sunlight.

____________________________________________________________________
[1 mark]

(ii) What is the type of tropism of root towards gravity.

____________________________________________________________________
[1 mark]
3. (a) Diagram 3.1 shows the structure of the human skin.

Diagram 3.1

(i) What are X and Y?

X : _________________________________________________________________

Y: __________________________________________________________________

[2 marks]

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(ii) State the function of X and Y?

X: _________________________________________________________________

Y: __________________________________________________________________
[2 marks]

(b) Diagram 3.2 shows a girl’s reaction when she accidentally touched a hot kettle.

Diagram 3.2

(i) What is the type of response?

____________________________________________________________________
[1 mark]

(ii) What receptors is involved during the reaction?

____________________________________________________________________
[2 marks]

(iii) State another example that has the same reaction as this response.

____________________________________________________________________
[1 mark]
(c) Diagram 3.3 shows a girl is receiving a vaccine injection on her arm.

Diagram 3.3

Why the injection is given on the arm instead of other parts of the body?
____________________________________________________________________

____________________________________________________________________
[2 marks]

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4. Diagram 4.1 shows a cross section of the human heart.

Diagram 4.1

(a) (i) P, Q, R and S are blood vessels. Which blood vessel brings oxygenated blood
into the heart?

____________________________________________________________________
[1 mark]
(ii) State a characteristics of blood vessel Q.
____________________________________________________________________

____________________________________________________________________
[2 marks]

(b) The human heart consists of four chambers which each heart chamber has different
thicknesses of muscle. Which chambers of the heart has the tickest muscle? Explain
why.

_______________________________________________________________________

_______________________________________________________________________
[2 marks]

(c) Explain the importance of the blood circulatory system to humans.

_______________________________________________________________________
[1 mark]

(d) Diagram 4.2 shows an adult man experiencing pain in his heart.

Diagram 4.2

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 (i) What contribute to heart disease?

_________________________________________________________________

_________________________________________________________________
[2 marks]

(ii) Suggest two ways to prevent heart diseases in young people.

_________________________________________________________________

_________________________________________________________________
[2 marks]
5. Diagram 5.1 shows the mechanism of inhalation and exhalation.

Diagram 5.1

(a) (i) Based on diagram 5.1, explain the condition of the rib cage and the
diaphragm during inhalation.
Rib cage : ___________________________________________________________
Diaphragm : _________________________________________________________
[2 marks]
(ii) Explain what will happen to volume of the thoracic cavity and the air pressure
inside the thoracic cavity based on your answer in 5(a)(i).

Volume of thoracic cavity : ______________________________________________

Air pressure inside thoracic cavity : _______________________________________
[2 marks]

(b) Diagram 5.2 shows the structure of an alveolus in the lungs.

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 (i) Draw an arrow in Diagram 5.2 to show the movement of carbon dioxide and
oxygen.
[1 marks]

(ii) State two adaptations of the structure of the alveolus to increase the rate of gas
exchange efficiency.

_________________________________________________________________

_________________________________________________________________
[2 marks]

(c) Give two substances that are harmful to the human respiratory system.

_______________________________________________________________________
[2 marks]

(d) Carry out a demonstration to show the effect of lungs during inhalation and exhalation
using the materials provided below. Sketch the model used in your demonstration and
explain.

Plastic bag

______________________________________________________________________

_______________________________________________________________________

_______________________________________________________________________
_______________________________________________________________________
[2 marks]

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6. Diagram 6 shows an ear.

Diagram 6

(a) Label P, Q and R.

P : _______________________________________________________________________
Q : _______________________________________________________________________
R : _______________________________________________________________________
[3 marks]

(b) State 2 structure of the ear, if damaged will not influence the mechanism of hearing.

__________________________________________________________________________
[ 2 marks]

(c) Certain people might suffer from deaf. State two factors that cause deaf.

__________________________________________________________________________

__________________________________________________________________________
[2 marks]
(d) Suggest two ways how to prevent and help people with deaf.

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________
[2 marks]
(e) What is stereophonic hearing?

__________________________________________________________________________

__________________________________________________________________________
[1 marks]

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(f) What is the importance of stereophonic hearing?

__________________________________________________________________________

__________________________________________________________________________
[1 mark]

(g) What is the hearing range of human?

__________________________________________________________________________
[1 mark]

END OF QUESTION PAPER

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