The direct energy source for muscle contraction is:
A)ATP
B)creatine phosphate
C)oxygen
D)glycogen

Question

Quizplus · Accepted Answer

ATP is the primary source of energy for muscle contraction. ATP is broken down into ADP (adenosine diphosphate) and energy, which is used to power the binding of actin and myosin filaments, leading to muscle contraction. While creatine phosphate, oxygen, and glycogen also contribute to energy production for muscle contraction, they are not the direct energy source.

The Direct Energy Source for Muscle Contraction Is