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(D) The rate of diffusion of gases across the respiratory membrane is governed by Fick's Law of Diffusion.Factors affecting this rate include:$1$. Sol

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All of these

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(D) The rate of diffusion of gases across the respiratory membrane is governed by Fick's Law of Diffusion.Factors affecting this rate include:$1$. Solubility of the gas: Gases with higher solubility (like $CO_2$) diffuse more rapidly than those with lower solubility (like $O_2$).$2$. Partial pressure gradient: The difference in partial pressure between the alveoli and the blood drives the diffusion.$3$. Thickness of the respiratory membrane: The thinner the membrane, the faster the diffusion rate.Since all these factors influence the rate of diffusion, the correct option is $D$.

Column-$I$	Column-$II$ ($PO_2$ in $mm\, Hg$)
$P$. Atmospheric air	$I$. $159$
$Q$. Tissues	$II$. $95$
$R$. Oxygenated blood	$III$. $40$

The rate of diffusion of gases can be affected by $-$

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