Release of cross-bridges depends most directly on
A)calcium ions.
B)potassium ions.
C)adenosine diphosphate.
D)adenosine triphosphate.
E)creatine phosphatE.

Question

Quizplus · Accepted Answer

Release of cross-bridges in muscle contraction depends most directly on the presence of adenosine triphosphate (ATP). When ATP binds to the myosin head, it causes the cross-bridge between actin and myosin to release, allowing for muscle relaxation or the next cycle of contraction.

Release of Cross-Bridges Depends Most Directly on