Which is a factor that helps maintain an optimal rate of pulmonary and systemic gas exchange in our body? A) minimal functional alveolar surface area for gas exchange B) greater diffusion distance between the alveoli and blood C) higher partial pressure difference between alveolar and blood O₂ D) low solubility of CO₂in the blood E) higher molecular weight of O₂

Question

Quizplus · Accepted Answer

The partial pressure difference between alveolar and blood (PCO2 and PO2) is a major factor that drives gas exchange in our body. If there is a higher partial pressure difference between alveolar and blood, the diffusion of gases is more efficient. As a result, a higher partial pressure difference ensures optimal gas exchange. Other options are incorrect as they oppose the factors that maintain optimal gas exchange in our body.

Which Is a Factor That Helps Maintain an Optimal Rate