Question

Write briefly about the biological importance of Actin and myosin filaments.

Answer 1

Actin and myosin are the thin and thick structural and functional filaments of the muscle respectively. Their mode of arrangement results in different forms of muscle like striated muscle and unstriated muscle. The interaction between them results in contraction of the muscle fiber and shortening of the muscle. These are the responsible for contraction of muscle and result in movement of the joints,