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Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

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Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

(a) Calcium

(b) Magnesium

(c) Sodium

(d) Potassium

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1 Answer

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Correct Option (a) Calcium
Explanation:

Ca++ ions bind with Tpc unit of troponin which is responsible for masking of active sites for myosin through tropomyosin. The event initiates cross-bridge activity during muscle contraction mechanism.

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