When actively contracting, skeletal muscles catabolize glucose, but at rest they rely on which of the following?

Question

Quizplus · Accepted Answer

When muscles are at rest, they rely on fatty acids for energy production. Glycogen is also a source of energy for muscles, but it is mostly utilized during exercise or when immediate energy is required. The catabolism of proteins and nucleic acids is not a major source of energy for muscles. Amino acids may be utilized in certain circumstances, but they are not the primary source of energy for muscles at rest.

When Actively Contracting, Skeletal Muscles Catabolize Glucose, but at Rest