The immediate source of energy for muscle action is

Question

Quizplus · Accepted Answer

ATP (adenosine triphosphate) is the immediate source of energy for muscle action. When the bonds between the phosphate groups of ATP are broken, energy is released, which is used by muscle cells to perform work. Glycogen and starch are stored forms of glucose, which can be broken down to produce ATP, but they are not the immediate source of energy for muscle action. Fatty acids are primarily used for long-term energy storage and are not a fast enough fuel source for the immediate energy needed for muscle action.

The Immediate Source of Energy for Muscle Action Is