Calcium important in skeletal muscle contraction because
Calcium important in skeletal muscle contraction because
Detaches the myosin head from the actin filament
Activates the myosin ATPase by binding to it
Binds to troponin to remove the masking of active sites on actin for myosin
Prevents the formation of bonds between the myosin cross bridges and actin filament
Solution
Calcium plays a key regulatory role in muscle contraction. Ca2+ ions bind to troponin and change their shape and position. This, in turn, alters 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.