NEET 2018 Zoology Muscle Contraction MCQ Question
Calcium is important in skeletal muscle contraction because it
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 the actin filament.
Correct Answer
Detailed Explanation
Calcium binds to troponin, causing a conformational change that exposes active sites on actin, allowing myosin to bind and muscle contraction to occur.
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