Calcium is important in skeletal muscle contraction because itA. detaches the myosi head from the actin filamentB. activates the myosin ATP ase by binding to itC. binds to troponin to remove the masking of active sites on actin for mysoinD. Prevents the formation of bonds between the mysoin cross bridges and the actin filament

Calcium is important in skeletal muscle contraction because itA. detac

1.	Calcium is important in skeletal muscle contraction because itA. detaches the myosi head from the actin filamentB. activates the myosin ATP ase by binding to itC. binds to troponin to remove the masking of active sites on actin for mysoinD. Prevents the formation of bonds between the mysoin cross bridges and the actin filament
Answer» Calcium plays a key regulatory role in muscle contraction . `Ca^(2+)` ions bind to troponin and changes its shape and position . This in turn , alter the shape and position of tropomyosin and hence , the active sites on F-actin are exposed . Due to this myosin cross-bridges are able to bind to these active sites and muscle contraction occurs.

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