The option depicting the correct partial pressures (in mm Hg) is:

Question

The option depicting the correct partial pressures (in mm Hg) is:, p O 2 in alveolar air p C O 2 in deoxygenated blood p O 2 in oxygenated blood p C O 2 in tissues 104 40 94 45, p O 2 in alveolar air p C O 2 in deoxygenated blood p O 2 in oxygenated blood p C O 2 in tissues 94 45 104 40, p O 2 in alveolar air p C O 2 in deoxygenated blood p O 2 in oxygenated blood p C O 2 in tissues 104 40 94 40, p O 2 in alveolar air p C O 2 in deoxygenated blood p O 2 in oxygenated blood p C O 2 in tissues 104 45 94 45

MARKS App · Accepted Answer

Partial pressure which is the pressure contributed by a single gas alone in the mixture of gases. It is represented as pG, where G represents different gases. The table gives us the pressures of oxygen and carbon-di-oxide during the exchange of gases from alveoli to blood and blood to the tissues. Carbon-di-oxide has a higher solubility in the blood ( 20 - 25 ) times than that of oxygen due to which the partial pressure of C O 2 is lower as compared to oxygen.

$p O_{2}$ in alveolar air	$p C O_{2}$ in deoxygenated blood	$p O_{2}$ in oxygenated blood	$p C O_{2}$ in tissues
$104$	$40$	$94$	$45$

$p O_{2}$ in alveolar air	$p C O_{2}$ in deoxygenated blood	$p O_{2}$ in oxygenated blood	$p C O_{2}$ in tissues
$94$	$45$	$104$	$40$

$p O_{2}$ in alveolar air	$p C O_{2}$ in deoxygenated blood	$p O_{2}$ in oxygenated blood	$p C O_{2}$ in tissues
$104$	$40$	$94$	$40$

$p O_{2}$ in alveolar air	$p C O_{2}$ in deoxygenated blood	$p O_{2}$ in oxygenated blood	$p C O_{2}$ in tissues
$104$	$45$	$94$	45

$p O_{2}$ in alveolar air	$p C O_{2}$ in deoxygenated blood	$p O_{2}$ in oxygenated blood	$p C O_{2}$ in tissues
$104$	$45$	$94$	45

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