When an elite athlete decides to donate blood during training and then have it transfused back into his body just before a competition, he is trying to increase his _____ and therefore the amount of _____ available to tissues in order to increase the rate of _____ energy metabolism

Question

Quizplus · Accepted Answer

When an athlete donates blood, he or she is decreasing the amount of available hemoglobin, which carries oxygen to the tissues during aerobic metabolism. By transfusing the blood back into the body, the athlete is increasing the hemoglobin concentration and therefore increasing the amount of oxygen available to the tissues during exercise. This allows for increased rates of aerobic energy metabolism. Myoglobin and cytochromes are not directly related to oxygen transport and energy metabolism, and there is no connection between transferrin and ATP production. Hemosiderin is an iron-storage protein, and does not play a role in either oxygen transport or energy metabolism.

When an Elite Athlete Decides to Donate Blood During Training