wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

respiration in organisms

Total questions: 40

Worksheet time: 21mins

Name
Class
Date
1.

Normal range of Breathing rate per minute in an average adult person at rest is:

a)

15-18

b)

30-33

c)

21-24

d)

9-12

e)

None of the option

2.

Identify the given diagram

a)

lungs

b)

spiracles

c)

gills

d)

none of this

3.

Lungs are present in the

(a)  

4.

When we inhale air, it passes through our nostrils into the__________

a)

Nasal cavity

b)

Chest cavity

c)

Diaphragm

d)

None of this

5.

In cockroaches, air enters the body through.

a)

Lungs

b)

Spiracles

c)

Gills

d)

Skin

6.

_______is essential for survival of living organisms.

a)

Inhalation

b)

Exhalation

c)

Respiration

d)

none of this

7.

What name is given to the part of trachea entering in the lungs?

(a)  

8.

________ gas is released when human beings respire.

a)

Oxygen

b)

Nitrogen

c)

CO2

d)

Argon

9.

Yeast breaks down glucose into ____________ and carbon dioxide.

a)

Alchohol

b)

Energy

c)

Food

d)

Oxygen

10.

The (a)   is a tube-like structure present in human respiratory system and is commonly known as wind pipe.

11.

)The fishes have lungs for respiration.

a)

TRUE

b)

FALSE

12.

Plants carry out photosynthesis only during the day and respiration only at night.

a)

True

b)

False

13.

Frogs breathe both by ___________ and __________

(a)  

14.

In cockroaches, air enters the body through _________ .

a)

Lungs

b)

Gills

c)

Spiracles

d)

Skin

15.

What is the ultimate ORIGINAL source of energy for living things?

a)

Moon

b)

Sun

c)

Mars

d)

Pluto

16.

Which of these is a product of cellular respiration?

a)

ATP

b)

Carbon dioxide

c)

Water

d)

All of these are a product of cellular respiration

17.
Which organ excretes carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
18.

What is the chemical formula for glucose?

a)

C6H12O6

b)

C12H6O12

c)

C6O12H6

d)

6CH2O

19.

What are the products of anaerobic respiration in a human cell?

a)

Energy and Lactic Acid

b)

Lactic Acid

c)

Lactic Acid and Carbon Dioxide

d)

Carbon Dioxide and Water

20.

What are the products of aerobic respiration?

a)

Carbon Dioxide and Energy

b)

Lactic Acid

c)

Water and Carbon Dioxide

d)

Glycogen and Carbon Dioxide

21.

During heavy exercise when supply of oxygen to our muscles is insufficient food breakdown is by

a)

anaerobic respiration

b)

aerobic respiration

c)

cellular respiration

22.

In the cells Oxygen is used to break down

a)

glucose into carbon di oxide

b)

Glucose into carbon di oxide and water

c)

water into carbon di oxide

d)

carbon di oxide into water

23.

Roots absorb air from

a)

water

b)

sunlight

c)

soil

24.

Yeast is a

a)

multicellular

b)

Carnivore

c)

anaerobe

d)

single celled organism

25.

When breakdown of glucose occurs with the use of oxygen it is called

a)

aerobic respiration

b)

anaerobic respiration

c)

cellular respiration

d)

anaerobes

26.
In which way are photosynthesis and cellular respiration different?
a)
Cellular respiration stores ATP, while photosynthesis releases ATP.
b)
Cellular respiration produces oxygen, while photosynthesis uses oxygen.
c)
Photosynthesis releases energy, while cellular respiration stores energy.
d)
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
27.
In which part of the cell does photosynthesis take place?
a)
vacuole
b)
mitochondria
c)
cell wall
d)
chloroplast
28.

What do the plants release during the respiration?

a)

Oxygen

b)

O2

c)

Carbon Dioxide

d)

CO2

29.

How do plants breathe?

a)

Through the stem

b)

Through the stomata

c)

Through the chloroplast

30.

Gills of a fish are equipped with blood vessels to help in the exchange of gases

a)

True

b)

False

31.

Which of the following use spiracles for respiration?

a)

mosquito & cockroach

b)

earthworm & cockroach

c)

fish & grasshopper

d)

only cockroach

32.
Which equation shows the reaction for anaerobic respiration
a)
carbon dioxide + water --> glucose and oxygen
b)
glucose + Oxygen --> lactic acid and energy
c)
glucose + oxygen --> carbon dioxide and water and energy
d)
glucose --> lactic acid and energy
33.
Where in the cell does anaerobic respiration take place?
a)
Nucleus
b)
Cytoplasm
c)
Mitochondria
d)
Cell membrane
34.
Which of the following option presents the passage of air from outside to lungs?
a)
larynx, trachea, pharynx, bronchial tubes
b)
bronchial tubes, trachea, pharynx, larynx
c)
pharynx, trachea, larynx, bronchial tubes
d)
pharynx, larynx, trachea, bronchial tubes
35.
State True or False
Gills take in oxygen from the water while lungs take in oxygen from the air.
a)
True
b)
False
36.
Which structure closes off trachea during swallowing?
a)
pneumatic
b)
pharynx
c)
larynx
d)
Epiglottis
37.
The air sacs that are covered with capillaries where gas exchange takes place are called as _________
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
38.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
39.
Which organ excretes carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
40.
Anaerobic respiration.....
a)
doesn't require CO2
b)
requires CO2
c)
doesn't require oxygen
d)
requires oxygen