WorksheetsSECTION A (PT3 - Chapter 1)
Total questions: 20
Worksheet time: 2mins
1 What is the function of sensory organs?
A To detect pain and pressure
B To detect the different kinds of tastes of food
C To detect changes in temperature and light intensity
D To detect changes that occur in the environment
2 The sensory cells in the nose are sensitive to
A the mucus in the nose
B the nerve endings in the nose
C the chemicals in the air
D the air entering the nose
3 The following are examples of devices used to overcome hearing limitations except
A stethoscope
B microscope
C microphone
D earphones
4 The sense of taste of a person is less sensitive when he is suffering from flu. Which of the following statements explains this phenomenon?
A Less saliva is secreted
B The mucus prevents chemicals from stimulating the smell receptors
C The taste buds are damaged
D The impulse cannot be transmitted to the brain for interpretation
5 Which of the following reactions will take place when a person moves from a bright area into a dark area?
I The pupil becomes bigger
II More light enters the eye
III After a while the eye can see in the dark
A I and II only
B I and III only
C II and III only
D I, II and III
6 What is the function of semicircular canals?
A Detects nerve impulses
B Amplifies sound vibrations
C Controls the body balance
D Converts vibration into impulses
7 Which of the following is nastic movement?
A The shoots of plants move towards the sunlight
B The radicle of plants move towards the gravity
C The mimosa plant closes its leaves when touched
D The tendrils of plants twine around the supporting structure
8 What is the importance of monocular vision for animals such as mice?
A Can hide easily from predators
B Can see images in colour
C Can detect predator from a very far distance
D A wide field of eyesight in order to detect predator easily
9 Which of the following structures of the ear will not vibrate when sound waves enter the ear?
I Eustachian tube
II Auditory nerve
III Ossicles
A I and II only
B I and III only
C II and III only
D I,II and III
10 Which statement is true about retina?
A Produces nerve impulses
B Refracts light onto the retina
C Sends nerve impulses to the brain
D Controls the quantity of light entering the eye
11 Which of the following shows the sequence of the pathway of light entering the eye?
A Cornea → Vitreous humour →Eye lens →Aqueous humour→Retina
B Cornea → Aqueous humour → Eye lens → Vitreous humour→ Retina
C Eye lens →Aqueous humour →Vitreous humour →Cornea →Retina
D Eye lens →Vitreous humour → Cornea→Aqueous humour →Retina
12 Which of the following stimuli can be sensed by the skin besides touch, pain, and temperature?
A Sight
B Smell
C Hearing
D Pressure
13 Which of the following is the component of peripheral nervous system?
A Brain
B Bone
C Cranial nerves
D Spinal cord
14 Which of the following causes the short-sightedness?
A The eyeball is too short
B The eyeball is too long
C The surface of the cornea is uneven
D The size of the pupil is too big
15 Old people usually need hearing aids because their....
A eardrums are less elastic
B ear ossicles do not vibrate
C auditory nerves are damaged
D cochlea do not contain any more fluid
16 Figure 1 shows the different areas of the tongue.Which area is the most sensitive to a cup of strong unsweetened tea?
A
B
C
D
17 The tendrils of a plant, on touching a support, curl round it in order to climb.This phenomenon is known as...
A geotropism
B thigmotropism
C hydrotropism
D phototropism
18 Figure 2 shows a cross section of the human ear. Which structure balances the air pressure on both sides of the eardrum?
A
B
C
D
19 Which part is correctly labelled?
A
B
C
D
20 Which of the following control the knee-jerking?
A Cerebellum
B Cerebrum
C Medulla oblongata
D Spinal cord
