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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
1
Medium
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Understanding
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Left shift of oxyhaemoglobin curve is noticed under
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Correct option: B
Low temperature and high pH
Option B (Low temperature and high pH) is correct because these conditions increase hemoglobin's affinity for oxygen, shifting the curve to the left.
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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