Multiple Choice
Hemoglobin
A) plays a critical role in determining the total amount of O2 that is exchanged because it acts as a storage depot, removing dissolved O2 and thus keeping the PO2 low so that net diffusion is allowed to continue.
B) combines only with O2 .
C) is found in erythrocytes.
D) both (a) and (c) above.
E) all of these answers.
Correct Answer:

Verified
Correct Answer:
Verified
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