True or False: The human body stores a limited supply of readily available ATP.

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This question asks you to evaluate whether the human body maintains only a restricted amount of ATP that is readily available for immediate use.

Option a: 'a. True' — This statement is consistent with physiology. The cellular ATP pool is small and rapidly depleted during high-intensity activity, supplying only a brief burst of energy before regeneration pathways take over. The body relies on complementary systems such as the phosphocreatine (creatine phosphate) system for quick ATP resynthesis, along with anaerobic glycolysis and aerobic metabolism to replenish ATP as needed. Thus, the notion of a limited readily available ATP store is accurate.

Option b: 'b. False' — This would claim that there is a large, readily available ATP reservoir in the body. That contradicts established understanding: although ATP is continuously recycled, the total amount stored at any given moment is small relative to overall energy demands, and rapid activity quickly consumes the available ATP until regeneration can occur. Therefore this option misstates the physiology by implying a large immediate supply where only a limited pool exists.

In summary, the correct interpretation is that the body has a limited readily available ATP supply that must be replenished frequently during activity, which supports the correctness of option a and the incorrectness of option b.

KNHES 2360 SP2025 (14427) Exam 1

True or False: The human body stores a limited supply of readily available ATP.

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