The more oxygen-depleted a cell is, the faster it can pick up oxygen from hemoglobin. Why is this?
A) Hemoglobin doesn't bind to oxygen very strongly.
B) If oxygen is low, carbon dioxide is high, and that interferes with the ability of the hemoglobin to hold onto oxygen.
C) At low oxygen levels, hemoglobin releases oxygen more easily.
D) At high oxygen levels hemoglobin hangs on tight to oxygen.
E) There are more red blood cells in the area.
Correct Answer:
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