NEET2023ZoologyBreathing and Exchange of GasesActual
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 and resultant release of CO ₂ . Choose the c
Options
- A(B), (C), (E), (D), (A)
- B(A), (C), (B), (E), (D)
- C(D), (A), (C), (B), (E)
- D(C), (B), (A), (E), (D)
Correct answer
C. (D), (A), (C), (B), (E)
Step-by-step solution
Option (3) is the answer, because the respiration involves the following stages: 1. Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO ₂ rich alveolar air is released out. 2. Diffusion of gases ( O ₂ . and . CO ₂ ) across alveolar membrane. 3. Transport of gases by the blood. 4. Diffusion of O ₂ and CO ₂ between blood and tissue. 5. Utilisation of O ₂ by the cells for catabolic reactions and resultant release of CO ₂ Rest of options (1), (2) and (4) are not the answers because these step