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Question
When a muscle is at rest, what blocks myosin from binding to actin?
When a muscle is at rest, what blocks myosin from binding to actin?
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Solution
The correct option is D Troponin
When a muscle is at rest, troponin blocks myosin binding sites on actin molecules and prevents cross-bridge formation. This in turn prevents contraction in a muscle without nervous input.
When a muscle is at rest, troponin blocks myosin binding sites on actin molecules and prevents cross-bridge formation. This in turn prevents contraction in a muscle without nervous input.
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