A: Diffusion of carbon dioxide is 20 times fa | vedclass

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(A) The diffusion rate of a gas across the alveolar membrane is directly proportional to its solubility and the partial pressure gradient.Carbon dioxi

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) The diffusion rate of a gas across the alveolar membrane is directly proportional to its solubility and the partial pressure gradient.Carbon dioxide $(CO_2)$ is $20-25$ times more soluble than oxygen $(O_2)$ in the blood and alveolar membranes.Due to this significantly higher solubility,the diffusion rate of $CO_2$ is much faster than that of $O_2$ for the same partial pressure gradient.Therefore,both the assertion and the reason are correct,and the reason provides the correct explanation for the assertion.

$A$: Diffusion of carbon dioxide is $20$ times faster than oxygen.
$R$: It is due to difference in partial pressure as well as solubility of diffusing gases.

Similar Questions

Water vapor exits from the leaves of terrestrial plants through open stomata. During photosynthesis,carbon dioxide enters the plant through the same open stomata. Identify the reason for the above statements from the following options.

In humans,exchange of gases occurs

Why do human beings face difficulty breathing at high elevations?

Explain: $(1)$ Exchange of gases by alveolus surface. $(2)$ Exchange of gases in tissues.

Blood leaving the lungs is rich in:

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$A$: Diffusion of carbon dioxide is $20$ times faster than oxygen.$R$: It is due to difference in partial pressure as well as solubility of diffusing gases.