Quiz 16: WS11.1 Answers

Kowloon Tong School (Secondary Section)

F.2 Integrated Science Quiz 16 WS11.1

Words Translation (5 marks)

	Chinese term	English term
1	感覺器官	Sense organs
2	刺激	Stimuli
3	反應	Respond
4	感受器	Receptors
5	腦	Brain

Fill in the Blanks (18 marks)

1        Changes in the environment ((1)stimuli) can be detected by our (2)sense organs. For example:

n   eye detects (3)light and produces sense of (4)sight;

n   (5)ear detects sounds and produces sense of (6)hearing;

n   (7)nose detects (8)chemicals in air and produces sense of smell;

n   (9)tongue detects chemicals in food or drinks and produces sense of (10)taste;

n   (11)skin detects (12)things in contact with the skin and produces sense of heat, cold, touch, pain and pressure.

2        By responding to stimuli, living things can find (13)shelters, (14)mates, detect and escape from danger.

3        Different (15)sense organs contain special kinds of cells called (16)receptors which are sensitive

to particular kinds of stimuli.

4        When receptors detect stimuli, they send signals to our (17)brain through nerves, which are then

interpreted to give us (18)senses.

Challenging Questions (Bonus 2 marks)

1.      Which part of our body interprets signals from senses organs to produce senses?

Brain.

2.      A person has normal eyes but cannot see well. Why?

It is because some parts of his brain is damaged.