Oxygen Diffusion from the Alveolus to the Pulmonary Capillary Occurs

question 105

Multiple Choice

Oxygen diffusion from the alveolus to the pulmonary capillary occurs because

• A) alveolar PO₂ is greater than capillary PO₂.
• B) oxygen diffuses faster than carbon dioxide.
• C) alveolar PCO₂ is greater than capillary PCO₂.
• D) alveolar PO₂ is less than capillary PCO₂.
• E) carbon dioxide diffuses faster than oxygen.

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