2026 Breathing and Exchange of GasesSteps of respiration Medium Question 2 of 53 in Breathing and Exchange of Gases

In humans, respiration occurs in the following steps. Arrange these steps in the correct order. I. Diffusion of $O_2$ and $CO_2$ between blood and tissues II. Diffusion of $O_2$ and $CO_2$ across alveolar membrane III. Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ rich alveolar air is released out IV. Cellular respiration V. Transport of gases by the blood Choose the CORRECT answer from the options given below:

A I, II, III, IV, V
B V, I, III, IV, II
C III, I, II, V, IV
D III, II, V, I, IV

The answer is D.

Breathing and Exchange of Gases in past papers

53 questions from this chapter have appeared across 20 exam years.