During intense exercise, as skeletal muscle cells switch to fermentation, the human body will increase its catabolism of
A) fats only.
B) carbohydrates only.
C) proteins only.
D) fats, carbohydrates, and proteins.
E) fats and proteins only.

Question

Quizplus · Accepted Answer

During intense exercise, the body switches to anaerobic fermentation which relies solely on glycolysis for energy production. This process primarily metabolizes carbohydrates through the breakdown of glucose to produce ATP. While fats and proteins can also be utilized for energy during exercise, they are not the primary source of energy during anaerobic fermentation, so their catabolism is not increased to the same degree as carbohydrates.

During Intense Exercise, as Skeletal Muscle Cells Switch to Fermentation