1. Tardigrade
  2. Question
  3. Biology
  4. Respiration involves following steps - (A). Diffusion of gases O2 and CO2 across alveolar membrane (B). Transport of gases by blood (C). Utilization of O2 by cell for catabolic reactions and resultant release of CO2 (D). Pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out (E). Diffusion of O2 and CO2 between blood and tissues. The correct sequence of steps is -

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Q. Respiration involves following steps -
(A). Diffusion of gases $O_2$ and $CO_2$ across alveolar membrane
(B). Transport of gases by blood
(C). Utilization of $O_2$ by cell for catabolic reactions and resultant release of $CO_2$
(D). Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ rich alveolar air is released out
(E). Diffusion of $O_2$ and $CO_2$ between blood and tissues.
The correct sequence of steps is -

Breathing and Exchange of Gases

Solution:

Correct answer is (c) $D \to A \to B \to E \to C$