Gas Exchange Transport Systems and Homeostasis
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In a healthy human at rest, which change would most strongly increase the net rate of oxygen diffusion from alveolar air into capillary blood, assuming alveolar ventilation and cardiac output remain constant?
Select one option.
A
Increase in alveolar surface tension due to reduced surfactant
B
Decrease in haemoglobin concentration in red blood cells
C
Increase in alveolar carbon dioxide partial pressure only
D
Decrease in thickness of the alveolar epithelium and capillary endothelium barrier
E
Decrease in red blood cell flexibility
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