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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
1
Medium
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Understanding
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For air flow into or out of the lungs there must be
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Correct option: C
A pressure gradient established between the atmosphere and the alveoli
Option C (A pressure gradient established between the atmosphere and the alveoli) is correct because air flow is driven by pressure differences.
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Select appropriate choice for the blanks A, B and C to complete the given NCERT statement The largest quantity of air that can be expired after a maximum inspiratory effort is Assertion : Most fish when out of water, die of
suffocation.
Reason : Atmospheric air contains far less
oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the
Select appropriate choice for the blanks A, B and C to complete the given NCERT statement The largest quantity of air that can be expired after a maximum inspiratory effort is Assertion : Most fish when out of water, die of
suffocation.
Reason : Atmospheric air contains far less
oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the