Ca²⁺ must bind to tropomyosin so that the myosin binding sites on actin will be accessible to the myosin.

Name: Ca 2+ must bind to tropomyosin so that the myosin binding sites on actin will be accessible to the myosin.
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Question

Quizplus · Accepted Answer

Ca²⁺ is not a recognized molecular entity in muscle contraction. Calcium ions (Ca2+) bind to troponin, causing a conformational change that moves tropomyosin away from myosin-binding sites on actin, making them accessible for myosin binding.

Ca2+ Must Bind to Tropomyosin So That the Myosin Binding

Ca²⁺ Must Bind to Tropomyosin So That the Myosin Binding