Question
Explain various steps of respiration.
✓
Answer
Steps of Respiration:
i. Breathing or pulmonary ventilation by which atmospheric air is drawn in and $\mathrm{CO}_2$, rich alveolar air is released out.
ii. Diffusion of gases $\left(\mathrm{O}_2\right.$, and $\left.\mathrm{CO}_2\right)$ across alveolar membrane.
iii. Transport of gases by the blood.
iv. Diffusion of $\mathrm{O}_2$, and $\mathrm{CO}_2$, between blood and tissues.
v. Utilisation of $\mathrm{O}_2$, by the cells for catabolic reactions and resultant release of $\mathrm{CO}_2$.
i. Breathing or pulmonary ventilation by which atmospheric air is drawn in and $\mathrm{CO}_2$, rich alveolar air is released out.
ii. Diffusion of gases $\left(\mathrm{O}_2\right.$, and $\left.\mathrm{CO}_2\right)$ across alveolar membrane.
iii. Transport of gases by the blood.
iv. Diffusion of $\mathrm{O}_2$, and $\mathrm{CO}_2$, between blood and tissues.
v. Utilisation of $\mathrm{O}_2$, by the cells for catabolic reactions and resultant release of $\mathrm{CO}_2$.
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