During anaerobic exercise, which reaction would be most active in the exercising muscle?
A) oxidative decarboxylation of isocitrate to α-ketoglutarate
B) oxidative decarboxylation of a-ketoglutarate to succinyl CoA
C) oxidative decarboxylation of pyruvate to acetyl CoA
D) conversion of succinate to fumarate
E) conversion of pyruvate to lactic acid

Question

Quizplus · Accepted Answer

During anaerobic exercise, the body does not have enough oxygen to meet the energy needs of the muscles, causing an increase in the production of lactic acid. The conversion of pyruvate to lactic acid (option E) is the most active reaction in the exercising muscle during anaerobic exercise, as it allows for the regeneration of NAD+ needed for glycolysis to continue. The other options are related to aerobic respiration and would not be as active during anaerobic exercise.

During Anaerobic Exercise, Which Reaction Would Be Most Active in the Exercising