Skeletal muscle fibers with the greatest endurance rely on ________ for energy.
A) anaerobic glycolysis
B) oxidative phosphorylation
C) lactic acid accumulation
D) ketone body degradation

Question

Quizplus · Accepted Answer

Skeletal muscle fibers with the greatest endurance rely on oxidative phosphorylation for energy. This is because oxidative phosphorylation produces ATP through the use of oxygen and a series of biochemical reactions that occur in the mitochondria. This process is more efficient and can produce ATP for longer periods of time compared to anaerobic glycolysis, which produces ATP through the breakdown of glucose without oxygen, and can lead to the accumulation of lactic acid. Ketone body degradation is not a significant source of energy for skeletal muscle fibers.

Skeletal Muscle Fibers with the Greatest Endurance Rely on ________