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Which of the following best describes th...

Which of the following best describes the processof gas exchange in the lungs?

A

Air moves in and out of the alveoli during brething

B

Carbon dioxide diffuses from deoxygenatedblood in capillaries into the alveolar air.

C

Oxygen and carbon dioxide diffuse down theirconcentration gradients between blood andalveolar air.

D

Oxygen diffuses from alveolar air intodeoxygenated blood.

Text Solution

Verified by Experts

Oxygen and carbon dioxide diffuse down theirconcentration gradients between blood andalveolar air.
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