Question

name the type of filaments which constitute A band of stiriated muscle fibres.

Answer 1

Sarcomeres are composed of long, fibrous proteins as filaments that slide past each other when a musclecontracts or relaxes. Two of the important proteins are myosin, whichforms the thick filament, and actin, which forms the thin filament. Myosin has a long, fibrous tail and a globular head, which binds to actin.