Under anaerobic conditions,skeletal muscle generates lactate from pyruvate.Why does it do this?

Question

Quizplus · Accepted Answer

Under anaerobic conditions, the electron transport chain cannot function and regenerate the electron carrier NAD+. As a result, NAD+ becomes limited and cannot keep up with the production of pyruvate in glycolysis. By converting pyruvate to lactate, the cell regenerates NAD+ from NADH. This allows glycolysis to continue, which generates additional ATP. Therefore, the correct answer is D, to regenerate NAD⁺ for further glycolysis.

Under Anaerobic Conditions,skeletal Muscle Generates Lactate from Pyruvate