The _______ activates _______, which phosphorylates myosin heads, leading to cycles of binding and releasing of actin in smooth muscle cells. A) enzyme myosin kinase; myosin phosphatase B) Ca²⁺-calmodulin complex; myosin kinase C) Ca²⁺ in the sarcoplasm; myosin kinase D) myosin-Ca²⁺ complex; myosin phosphatase E) Ca²⁺-calmodulin complex; myosin phosphatase

Question

Quizplus · Accepted Answer

The Ca2+/calmodulin complex activates myosin kinase, which phosphorylates myosin heads, leading to cycles of binding and releasing of actin in smooth muscle cells.

The _______ Activates _______, Which Phosphorylates Myosin Heads, Leading to Cycles

The _ Activates _, Which Phosphorylates Myosin Heads, Leading to Cycles