The energy needed to drive muscle contraction comes from ATP hydrolysis that is carried out by
A)G-actin.
B)F-actin.
C)myosin heads.
D)myosin tails.
E)tropomyosin.

Question

Quizplus · Accepted Answer

ATP hydrolysis is carried out by myosin heads in order to generate the energy needed for muscle contraction. Myosin heads bind to actin filaments during muscle contraction and use energy from ATP to perform the power stroke, which causes the actin filaments to slide past the myosin filaments and leads to muscle shortening.

The Energy Needed to Drive Muscle Contraction Comes from ATP