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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Understanding
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If a large number of people are enclosed in a room, then
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Correct option: A
Oxygen decreases and carbon dioxide increases
Option A (Oxygen decreases and carbon dioxide increases) is correct because people consume oxygen and release carbon dioxide during respiration.
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External gills, tracheae, and lungs all share which of the following sets of characteristics?
A person suffers punctures in his chest cavity in an accident, without any damage to the lungs its effect could be
Among vertebrates, …A… use gills whereas reptiles, birds and mammals respire through the …B… . Amphibians like frogs can respire through …C… also. Mammals have a well adapted respiratory system
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