Calcium important in skeletal muscle contraction because

Question

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

MARKS App · Accepted Answer

Calcium plays a key regulatory role in muscle contraction. Ca 2+ 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.

Search any question & find its solution

Looking for more such questions to practice?