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• Adaptation in respiratory system • Gaseous exchange in pla

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Which one is not features to ensure an efficient gaseous exchange with the surroundings?

a)

Moist surface of respiratory structures

b)

Thin respiratory structures such as the walls of blood capillaries

c)

Dry outer skin causes the respiratory gases to dissolve and diffuse easily

d)

Large surface area of respiratory structures

2.

Name the respiratory structure in fish.

a)

Lungs

b)

Gills

c)

Moist outer skin

d)

Trachea

3.

Name the respiratory structure in insects.

a)

Lungs

b)

Gills

c)

Moist outer skin

d)

Trachea

4.

Name the respiratory structure in frog.

a)

Trachea

b)

Gills

c)

Moist outer skin

5.

Gills are made up of two rows of fine filaments that have many thin and flat projections known as .........................

a)

trachea

b)

lamellae

c)

spiracles

d)

valves

6.

The number of filaments and lamellae in fish produce a large surface area to facilitate .......................

a)

water diffusion

b)

blood circulation

c)

energetic activities

d)

gaseous exchange

7.

Name one respiratory structure of an amphibians which can adapt for gaseous exchange while they are on land.

a)

Lungs

b)

Gills

c)

Moist outer skin

d)

Trachea

8.

The respiratory system of insects is made up of ..................... known as .......................

a)

fillaments , lamellae

b)

air tubes , trachea

c)

alveoli , alveolus

9.

What is structure X ?

a)

Valves

b)

Tracheoles

c)

Spiracles

d)

Air sacs

10.

When we exercise, our rate of respiration

increases. Higher rate of transport of

.................... to body cells and higher rate of

elimination of ....................... from body

cells result in healthier body cells.

a)

oxygen , carbon monoxide

b)

oxyhaemoglobin , carbon monoxide

c)

carbon dioxide , oxygen

d)

oxygen , carbon dioxide

11.

Parts of plants that provide a large surface area for gaseous exchange

a)

Leaves

b)

Stens

c)

Roots

d)

Flowers

e)

Fruits

12.

Plan taking in oxygen and giving out Carbon dioxide

a)

During the day

b)

During the night

13.

Stomata of plants closed when

a)

Photosynthesis occur

b)

Presence of light

c)

No lights at the surrounding

d)

Plant loses a lot of water

14.

Government agency that specialises in agriculture

a)

ILKM

b)

MARA

c)

MARDI

d)

KEMAS

15.

What did you see in the diagram

(a)