Which of the Following Factors Does Not Affect the Rate

Question

Which of the following factors does not affect the rate of external respiration?
A) Volume of the alveolus
B) Solubility of oxygen in plasma
C) PO2of the alveoli
D) PCO2of the blood
E) Thickness of the respiratory membrane

Accepted Answer

The volume of the alveolus does not directly affect the rate of external respiration. External respiration is primarily influenced by factors such as the partial pressures of gases (PO2 and PCO2), the solubility of gases, and the thickness of the respiratory membrane.