Question

For completion of respiration process, write the given steps in sequential manner

1. Diffusion of gases (O₂ and CO₂) across alveolar membrane.
2. Transport of gases by blood.
3. Utilisation of O₂ by the cells for catabolic reactions and resultant release of CO₂.
4. Pulmonary ventilation by which atmospheric air is drawn in and CO₂ rich alveolar air is released out.
5. Diffusion of O₂ and CO₂ between blood and tissues.

Answer 1

Respiration involves the following steps:

1. Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO₂ rich alveolar air is released out.
2. Diffusion of gases (O₂ and CO₂) across the alveolar membrane.
3. Transport of gases by the blood.
4. Diffusion of O₂ and CO₂ between blood and tissues.
5. The utilisation of O₂ by the cells for catabolic reactions and resultant release of CO₂.