ZoologyNEET 2021Exchange and transport of gases

Breathing and Exchange of Gases

The partial pressures (in mm Hg) of oxygen ( $O_{2}$ ) and carbon dioxide ( $C O_{2}$ ) at the alveoli (the site of diffusion) are:

A. $p O_{2}$ = 104 and $p C O_{2}$ = 40✓
B. $p O_{2}$ = 40 and $p C O_{2}$ = 45
C. $p O_{2}$ = 95 and $p C O_{2}$ = 40
D. $p O_{2}$ = 159 and $p C O_{2}$ = 0.3

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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