During a Cross-Bridge Cycle in Skeletal Muscle, the

Multiple Choice

During a cross-bridge cycle in skeletal muscle, the

A) Cross bridge is energized when it hydrolyzes ATP.
B) Myosin cross bridge must bind with an ATPase before the cross bridge will experience a power stroke.
C) Ca²⁺ causes the troponin-tropomyosin complex to move off the actin-binding sites on myosin.
D) ADP binds to the cross bridge at the end of the power stroke.
E) Cross bridge is energized when it hydrolyzes ATP, and myosin cross bridge must bind with an ATPase before the cross bridge will experience a power stroke.