The burning pain in your muscles during strenuous exercise is a result of A)the buildup of lactic acid during fermentation. B)signals sent to the nervous system by O₂-starved cells. C)the accumulation of pyruvate in the absence of oxidative phosphorylation. D)the lack of ATP needed to regulate the pain receptors in your muscle cells.

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Quizplus · Accepted Answer

The burning pain in muscles during strenuous exercise is caused by the accumulation of lactic acid produced during fermentation. As the body works harder and the demand for ATP increases, the cells begin to produce energy using fermentation instead of aerobic respiration. This process generates lactic acid, which can build up in the muscles and cause a burning sensation.

The Burning Pain in Your Muscles During Strenuous Exercise Is