ATPase enzyme needed for muscle contraction is located in
" " Or
The contractile protein of skeletal muscle involving ATPase activity is

Options

A. Myosin
B. Actin
C. Actinin
D. Troponin

Answer

A

Explanation

Myosin protein forms anisotropic band and its centres forms 'M' line i.e. muscle fibre itself consists of myosin filaments. The cross bridges present in myosin molecules are enzymatic in nature and always tends towards. The centre of myosin filement thus causes the contraction of muscle fibre.