By what mechanism does gas exchange across the lung occur?
A) Active transport
B) Facilitated diffusion
C) Facilitated transport
D) Simple diffusion

Name: By what mechanism does gas exchange across the lung occur? A) Active transport B) Facilitated diffusion C) Facilitated transport D) Simple diffusion
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Question

Quizplus · Accepted Answer

This close "match" of gas and blood across a large but extremely thin blood-gas barrier membrane enables efficient gas exchange to occur by simple diffusion.

By What Mechanism Does Gas Exchange Across the Lung Occur