SCIENCE F3 REVISION KSSM

A student eats several kinds of

food and he finds that the parts

of tongue X and Y in Diagram 1

are stimulated.

Which of the following are the

food eaten by the student?

I Common salt

II Honey

III Lemon

IV Coffee

• A I and II

• B III and IV

• C II and III

• D I and IV

Diagram 2 shows the structure

of the human ear.

Which part of the ear controls

body balance?

• A

• B

• C

• D

Diagram 3 shows the human

eye.

What is the function of P?

• A Focuses light rays

• B Controls the size of the pupil

• C Changes images to impulses

• D Allows light to enter the eye

What is the similarity of the

animals such as cows, goats and

rabbits?

• A Have a wide field of vision

• B Can estimate distance

  accurately

• C Have stereoscopic vision

• D Have a three-dimensional

  view of objects

Which of the following structure

allows food and air to pass

through it?

• A Pharynx

• B Larynx

• C Bolus

• D Trachea

Study the following statement:

Gas P combines with haemoglobin to form carboxyhaemoglobin.

What is the effect if gas P enters the human respiratory system?

• A Cells in the respiratory tract will die.

• B The total energy production of the body cells decreases.

• C The lungs will increase the production of mucus.

• D The respiratory tract will become irritated and causes asthma.

Which of the following are the diseases of the respiratory system?

I Goitre

II Bronchitis

III Emphysema

IV Stroke

• A I and II

• B III and IV

• C II and III

• D I and IV

Which of the following increases the concentration of carbon dioxide in the alveolus?

• A Oxygen diffuses into the alveolus

• B Oxygen diffuses into the blood capillary

• C Carbon dioxide diffuses into the alveolus

• D Carbon dioxide diffuses into the blood capillary

Which of the following happens when the diaphragm curves upwards?

• A The diaphragm muscles contract.

• B The ribs move upwards.

• C Air pressure in the thoracic cavity increases.

  .

• D Air moves into the lungs.

What is the process involved in controlling the opening and

closing of the stomata?

• A Transpiration

• B Osmosis

• C Evaporation

• D Boiling