Oxygen debt occurs as a result of the accumulation of
A) lactic acid
B) pyruvic acid
C) creatine phosphate
D) glucose
E) citric acid

Question

Quizplus · Accepted Answer

Oxygen debt occurs when there is not enough oxygen available to meet the energy demands of muscles during periods of exercise. This leads to a buildup of lactic acid, which causes muscle fatigue and soreness. Choice B, pyruvic acid, is an intermediate product in glycolysis but does not directly lead to oxygen debt. Creatine phosphate (choice C) is used as an immediate energy source for muscle contractions, but does not accumulate and lead to oxygen debt. Glucose (choice D) is the main source of energy for muscles during exercise, but again does not accumulate and cause oxygen debt. Citric acid (choice E) is part of the Krebs cycle, which is important for the production of energy in the form of ATP, but does not directly contribute to oxygen debt.

Oxygen Debt Occurs as a Result of the Accumulation of