Compared to the atmospheric air, the alveolar air has

Question

Compared to the atmospheric air, the alveolar air has (A) more pO2 and less pCO2 (B) less pO2 and more pCO2 (C) more pO2 and more pCO2 (D) less pO2 and less pCO2

Tardigrade Admin · Accepted Answer

The partial pressure of oxygen in atmospheric air is higher than that of oxygen in alveolar air. In atmospheric air,

p O_{2}

is about

15, mm H g

. In alveolar air, it is about

104 mm H g

.
The partial pressure of

C O_{2}

in atmospheric air is lesser than that of

C O_{2}

in alveolar air. In atmospheric air,

pC O_{2}

is about

0.3 mm H g

. In alveolar air, it is about

40 mm H g

.

Q. Compared to the atmospheric air, the alveolar air has

more $p O_{2}$ and less $pC O_{2}$

less $p O_{2}$ and more $pC O_{2}$

more $p O_{2}$ and more $pC O_{2}$

less $p O_{2}$ and less $pC O_{2}$

Q. Compared to the atmospheric air, the alveolar air has

more pO2​ and less pCO2​

less pO2​ and more pCO2​

more pO2​ and more pCO2​

less pO2​ and less pCO2​

more $p O_{2}$ and less $pC O_{2}$

less $p O_{2}$ and more $pC O_{2}$

more $p O_{2}$ and more $pC O_{2}$

less $p O_{2}$ and less $pC O_{2}$