Question

Immediate source of energy for muscle contraction is

Answer 1

ATP is essential for muscle contraction

ATP plays a vital role during muscle contraction. The myosin head binds to ATP, which after hydrolysis leads to cross-bridge formation. The energy derived helps the myosin filament to pull the actin filaments towards the centre of 'A' band. This ultimately leads to shortening of sarcomere and muscle contraction.

Hence, ATP is considered as the immediate energy source in muscle contraction because of its direct involvement in the process.