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Q.
ATPase enzyme needed for muscle contraction is located in
ManipalManipal 2007
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 $ C{{a}^{2+}} $ and $ M{{g}^{2+}} $ ions. Hence, ATPase enzyme is located in myosin.