Question

Describe the ultrastructure of striped muscles fibre.

Answer 1

Heya mate here is ur answer...
The striated appearance of skeletal muscle fibres arises due to the organisation of two contractile proteins or myofilaments, actin (thin filament) and myosin (thick filament). The functional unit of contraction in a skeletal muscle fibre is the sarcomere, which runs from Z line to Z line.
hope this may help u...