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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Medium
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Understanding
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Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
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Correct option: C
there is a negative intrapleural pressure pulling at the lung walls
Option C (there is a negative intrapleural pressure pulling at the lung walls) is correct because the negative intrapleural pressure prevents lung collapse.
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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