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)diameter of an alveolus.
E)solubility of oxygen in plasma.

Question

Quizplus · Accepted Answer

The diameter of an alveolus does not affect the rate of external respiration. The other factors listed, including the PO₂ of the alveoli, PCO₂ of the blood, thickness of the respiratory membrane, and solubility of oxygen in plasma, all play a role in determining the rate of external respiration.

Each of the Following Factors Affects the Rate of External