Repaying the oxygen debt requires replacing oxygen that was
A)bound to blood hemoglobin and muscle myoglobin.
B)needed to metabolize lactic acid.
C)used for tissue warm up.
D)All apply.

Question

Quizplus · Accepted Answer

Repaying the oxygen debt requires replacing the oxygen bound to blood hemoglobin and muscle myoglobin, which was depleted during the period of intense exercise. It also requires oxygen to metabolize lactic acid that has accumulated in the tissues during this period. Finally, some oxygen may have been used for tissue warm up, so it may also need to be replaced. Therefore, all of the choices apply.

Repaying the Oxygen Debt Requires Replacing Oxygen That Was