Each of the Following Factors Affects the Rate of External

Question

Each of the following factors affects the rate of external respiration except the
A) PO2 of the alveoli.
B) PCO2 of the blood.
C) thickness of the respiratory membrane.
D) PN2 of the alveoli.
E) solubility of oxygen in plasma.

Accepted Answer

PN2 of the alveoli does not directly affect external respiration. The other options all play a role in determining the rate of gas exchange during external respiration.