Constant flow of CO_2 from the tissues into t | vedclass

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(B) The exchange of gases like $O_2$ and $CO_2$ between the tissues and the blood occurs primarily through the process of simple diffusion.Diffusion i

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More amount of $CO_2$ in tissue cells than in the blood

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(B) The exchange of gases like $O_2$ and $CO_2$ between the tissues and the blood occurs primarily through the process of simple diffusion.Diffusion is driven by a partial pressure gradient.In metabolically active tissues,cellular respiration produces $CO_2$ as a byproduct,leading to a higher partial pressure of $CO_2$ $(pCO_2)$ in the tissues compared to the blood.Conversely,the blood arriving at the tissues has a lower $pCO_2$.Due to this concentration gradient,$CO_2$ moves from the area of higher partial pressure (tissues) to the area of lower partial pressure (blood) until equilibrium is reached.

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

Constant flow of $CO_2$ from the tissues into the blood is due to

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Match the partial pressures of oxygen in different parts involved in diffusion compared to the atmosphere.
Column-$I$ Column-$II$ ($PO_2$ in $mm\, Hg$)
$P$. Atmospheric air $I$. $159$
$Q$. Tissues $II$. $95$
$R$. Oxygenated blood $III$. $40$

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