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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Understanding
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On high mountains difficulty in breathing is due to
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Correct option: A
Decrease in partial pressure of oxygen
Option A (Decrease in partial pressure of oxygen) is correct because at high altitudes, the partial pressure of oxygen is lower, making it harder for oxygen to diffuse into the blood.
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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