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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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A chemosensitive area is situated adjacent to the rhythm centre in the brain. This area is highly sensitive to
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Correct option: D
Both (1) and (3 )
Option D (Both (1) and (3)) is correct because the chemosensitive area near the rhythm center is highly sensitive to both CO2 and H+ concentrations.
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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