Multiple Choice
The breaking open of alveoli in people with emphysema decreases their rate of gas exchange because
A) the distance between the air they breathe in and the blood is decreased.
B) there is less pressure in the lungs to force the oxygen to dissolve in the blood.
C) the concentration of oxygen in the lungs becomes much greater than that in the blood.
D) their lungs have less surface area available for diffusion.
Correct Answer:
Verified
Correct Answer:
Verified
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