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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Read the following statements carefully w.r.t. humans.
(a) Inspiratory capacity of a healthy adult human is about six to seven times to his tidal volume.
(b) Simple diffusion of respiratory gases through diffusion membrane is mainly based on solubility of gases but not on pressure gradients.
(c) Pressure contributed by gases in a gaseous mixture is called partial pressure of gases.
(d) The role of in the regulation of respiratory rhythm is quite insignificant.
Choose the option with only correct statements.
(a) Inspiratory capacity of a healthy adult human is about six to seven times to his tidal volume.
(b) Simple diffusion of respiratory gases through diffusion membrane is mainly based on solubility of gases but not on pressure gradients.
(c) Pressure contributed by gases in a gaseous mixture is called partial pressure of gases.
(d) The role of in the regulation of respiratory rhythm is quite insignificant.
Choose the option with only correct statements.
View answer and explanation
Correct option: D
(a) and (d)
Option C ((c) and (d)) is correct because statements (c) and (d) are the only correct statements regarding partial pressure and the role of oxygen in respiration.
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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