Notes from NEET topper
Function:
- The primary function of actin and myosin is to enable muscle contraction, which is the process of generating force and movement.
- Muscle contraction occurs when myosin heads bind to actin filaments and undergo a series of conformational changes, known as the sliding filament theory.
- This interaction causes the actin filaments to slide past the myosin filaments, resulting in the shortening of sarcomeres and muscle contraction.
- Actin and myosin also play roles in non-muscle cells, such as in cell motility, cytokinesis during cell division, and intracellular transport.
