Question

When does glycolysis occur? At what intensity?

a) Glycolysis occurs during aerobic exercise at low to moderate intensity.
b) Glycolysis occurs during anaerobic exercise at high intensity.
c) Glycolysis occurs during rest at low intensity.
d) Glycolysis occurs during anaerobic exercise at low intensity.

Answer 1

Glycolysis occurs during anaerobic exercise at high intensity. During intense exercise, glucose is broken down through glycolysis to produce ATP, the main source of energy for muscle contraction.

Step-by-step explanation:

Glycolysis occurs during anaerobic exercise at high intensity. During intense exercise, the demand for energy exceeds the supply of oxygen to the muscles, leading to anaerobic metabolism. In this process, glucose is broken down through glycolysis to produce ATP, the main source of energy for muscle contraction. This results in the production of lactic acid, which can cause muscle fatigue.