Multiple Choice
What is the rate of diffusion in the gas- exchange organ of an air- breathing animal where the area for gas exchange in the lung is 200 mm2, the diffusion constant is 0.08, the PO2 partial pressure of oxygen) of the air in the lung is 140 mm Hg, the PO2 in blood flowing into the lung is 90 mmHg, and the thickness of the gas exchange membrane is 0.001 mm?
A) 00032
B) 800,000
C) 125
D) 10,000,000
Correct Answer:

Verified
Correct Answer:
Verified
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