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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Which of the following combines irreversibly with blood haemoglobin?
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Correct option: C
CO
Option C (CO) is correct because carbon monoxide binds to hemoglobin with a much higher affinity than oxygen, forming a stable compound and preventing oxygen transport.
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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