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Homeostasis Science Form 1

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What are the organs involved in regulation of water content in human body?

a)

Brain and lungs

b)

Brain and kidneys

c)

Kidneys and skin

d)

Lungs and skin

2.

Which of the following corrective mechanisme is correct when the body has low water level?

a)

Do not feel thirsty

b)

Diluted urine

c)

The brain stimulate hormone to produce less and concentrated urine

d)

The brain stimulate hormone to produce more and diluted urine

3.

What are the systems involved in regulating the the body temperature?

a)

Excretory and endocrine

b)

Respiratory and digestive

c)

Endocrine and reproduction

d)

Muscle and excretory

4.

At night, stoma ________ to reduce the water evaporation through transpiration.

a)

closes

b)

opens

5.

Heart beat rate __________ when doing heavy exercise.

a)

decreases

b)

does not change

c)

increases

6.

How cats maintain their homeostasis?

a)

Produce mucus

b)

Stick out their tongue

c)

Lick their fur

d)

Close their spiracles

7.

Which is correct about close stoma?

a)

to prevent water lost from the plant

b)

more water evaporate in the air

c)

plants wilt

8.

Homeostasis is process of _________ the internal environment in a balance and stabil condition.

a)

changing

b)

preparation

c)

maintaining

9.

State two factors influencing the production of urine?

a)

Amount of food and internal body temperature

b)

Surrounding temperature and amount of water taken

c)

Surrounding temperature and amount of food taken

10.

Which is not true when somebody drink a lot of water?

a)

Kidneys produce a lot of urine

b)

Kidneys produce less urine

c)

Do not feel thirsty

11.

What is the method of regulating body temperature for elephants?

a)

By flapping their ears

b)

By submerging their bodies in water

c)

By licking their fur

d)

By sticking out their tongue

12.

State the part of plant that control lost of water.

a)

Mitochondria

b)

Chloroplast

c)

Guard cells

d)

Cell membrane

13.

During hot day, why some animals moisten their body using their saliva?

a)

Saliva evaporates and cool their body

b)

Saliva prevents the body from drying

c)

Saliva kills microorganisms on the skin

d)

Saliva prevents the skin from burning by the sun

14.

What is the tiny pore on leaf that releases water vapour during tranpiration?

a)

Gills

b)

Hydathode

c)

Spiracles

d)

Stoma

15.

A group of student is playing football in the playground. What will happen to their body temperature after the game?

a)

Will continue to rise

b)

Increases

c)

Decreases

d)

Still the same

16.

How do buffaloes maintain homeostasis during hot weather?

a)

Flapping their ears

b)

Produce mucus

c)

Wallow in the mud

d)

Lick their body

17.

Banana trees __________ their leaves in hot weather to reduce the lost of ___________ through transpiration

a)

open, air

b)

fold , water

c)

fold, air

d)

open, water

18.

A lizard in a hot surrounding,

a)

has a faster heart beat

b)

increases their metabolism

c)

move faster

d)

produce mucus

19.

The following statement is how animals maintain their internal environment. "The body of the animal is covered with waxy layer and water loss is through spiracles

on the body"

a)

Dogs

b)

Cats

c)

Snails

d)

Bees

20.

What is the process shown by the plant in the diagram?

a)

Respiration

b)

Transpiration

c)

Photosynthesis