During exercise, the energy necessary to sustain skeletal muscle cell contraction comes from
A) increased insulin production.
B) increased epinephrine and glucagon release.
C) decreased sympathetic nervous system activity.
D) storing glucose as glycogen.
E) conservation of glucose.

Question

Quizplus · Accepted Answer

During exercise, the body increases the release of epinephrine and glucagon to mobilize energy stores, such as breaking down glycogen into glucose for muscle cells to use as fuel. This process helps sustain skeletal muscle cell contraction.

During Exercise, the Energy Necessary to Sustain Skeletal Muscle Cell