Respiration UPSC Questions

Biology

Respiration MCQ Questions


7.
Which organisms use tracheae for respiration?
A.
Fish
B.
Frogs
C.
Insects
D.
Snails
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ANSWER :
C. Insects
8.
How do earthworms breathe?
A.
Through lungs
B.
Through gills
C.
Through spiracles
D.
Through moist skin
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ANSWER :
D. Through moist skin
9.
What is the function of the diaphragm during inhalation?
A.
Moves up
B.
Moves down
C.
Remains fixed
D.
Vibrates
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ANSWER :
B. Moves down
10.
What does aerobic respiration produce?
A.
Alcohol and COâ‚‚
B.
Lactic acid
C.
Carbon dioxide and water
D.
None of these
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ANSWER :
C. Carbon dioxide and water
11.
Why should you cover your nose while sneezing?
A.
To avoid loud noise
B.
To expel air faster
C.
To prevent spreading foreign particles
D.
To inhale oxygen
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ANSWER :
C. To prevent spreading foreign particles
12.
Which gas is more in exhaled air than in inhaled air?
A.
Oxygen
B.
Hydrogen
C.
Nitrogen
D.
Carbon dioxide
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ANSWER :
D. Carbon dioxide