Question

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Explain breathing and exchange of gases ​

Answer 1

Explanation:

Oxygen is required for catabolic processes and carbon dioxide is released in the process. So the body requires a continuous exchange of gases, oxygen from the atmosphere is taken inside and carbon dioxide produced is taken out. This process of gaseous exchange is called breathing or respiration.

Answer 2

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$\huge\rm{\blue{\underline{\underline{Respiration\: involves:\ the\: following \:steps:}}}}$

(i) Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out.

(ii) Diffusion of gases (O2 and CO2) across alveolar membrane.

(iii) Transport of gases by the blood.

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