Locomotion and MovementHard

Question

ATPase enzyme needed for muscle contraction is located in

Options

A.actinin
B.troponin
C.myosin
D.actin

Solution

During muscular contraction myosin cross bridges heads. Myosin is not only an actin binding protein it is also an ATPase (an enzyme) which is activated by Ca2+ and Mg2+ions. Hence, ATPase enzyme is located in myosin.

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