Question
Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction
Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction
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Solution
The correct option is C Calcium
Calcium ions bind to the troponin and tropomyosin molecules in the actin filaments of the muscle cells. The binding of calcium allows the troponin to change shape and expose the actin-myosin binding site. Thus calcium is responsible for cross-bridge activity during muscle contraction.
Calcium ions bind to the troponin and tropomyosin molecules in the actin filaments of the muscle cells. The binding of calcium allows the troponin to change shape and expose the actin-myosin binding site. Thus calcium is responsible for cross-bridge activity during muscle contraction.
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