2023 Manipur Breathing and Exchange of GasesSequential steps of respiration Medium Question 10 of 53 in Breathing and Exchange of Gases

Select the sequence of steps in Respiration. (A) Diffusion of gases ($O_2$ and $CO_2$) across alveolar membrane. (B) Diffusion of $O_2$ and $CO_2$ between blood and tissues. (C) Transport of gases by the blood (D) Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ rich alveolar air is released out. (E) Utilisation of $O_2$ by the cells for catabolic reactions are resultant release of $CO_2$. Choose the correct answer from the options given below:

A (D), (A), (C), (B), (E)
B (C), (B), (A), (E), (D)
C (B), (C), (E), (D), (A)
D (A), (C), (B), (E), (D)

The answer is A.

Solution

The correct sequence of respiration: Pulmonary ventilation (D) → Diffusion of gases across the alveolar membrane (A) → Transport of gases by blood (C) → Diffusion of gases between blood and tissues (B) → Utilisation of $O_2$ by cells for catabolic reactions (E). Order: D, A, C, B, E.

Concept Sequential steps of respiration

Breathing and Exchange of Gases in past papers

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