Lungs have a large number of alveoli for....

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Question

(B) The lungs contain millions of alveoli,which are tiny,balloon-like structures at the end of the respiratory tree.These alveoli significantly increa

Vedclass · Accepted Answer

More surface area for diffusion of gases

Vedclass · Answer

(B) The lungs contain millions of alveoli,which are tiny,balloon-like structures at the end of the respiratory tree.These alveoli significantly increase the total surface area available for the exchange of gases ($O_2$ and $CO_2$) between the air and the blood.According to Fick's law of diffusion,the rate of diffusion is directly proportional to the surface area available.Therefore,a large number of alveoli ensures efficient and rapid gas exchange,which is essential for meeting the metabolic demands of the body.

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Analogy type question:
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