Question

explain structure of mussel fibre​

Answer 1

Muscle Fibres:

• Muscle Fibres are cylindrical or tubular in shape

• The outer membrane of muscle fibre is called sarcolemma.

• Each muscle fibre has sarcoplasm.

• The cell membrane of muscel cell is made up of collagen.

• Sarcoplasm of muscle fibre is multinucleated.

• Nucleus is found in peripheral part of muscel fibres.

• Muscel fibres have parallel arrangement of myofilaments in them.

• Each myofilament has dark and light bands on it.

• The light bands contains actin and are called Isotropic bands.

• The dark bands contains Myosin and are called Anisotropic bands.

• I-banda are thinner when compared to A bands.

• The thin filaments are attached to Z-line, which is an elastic fibre.

• The thick filaments are held together by M-line, which is a membranous fibre.