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Alveoli is the site for the gas exchange...

Alveoli is the site for the gas exchange in the respiratory system of humans. Gas exchange occurs due to the gradient in the partial pressure of gases. During the process, the partial pressures of oxygen in alveoli is found to be

A

Less than that in deoxygenated blood.

B

More than that in oxygenated blood.

C

Equal to that in atmospheric air.

D

Less than that in tissues

Text Solution

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The correct Answer is:
B
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