Final answer:
The sliding filament theory in biology explains how muscle proteins slide past each other to generate movement and muscle contraction.
Explanation:
Sliding Filament Theory
The sliding filament theory explains the mechanism of muscle contraction based on muscle proteins that slide past each other to generate movement. According to this theory, myosin filaments use energy from ATP to 'walk' along the actin filaments, pulling them closer together and shortening the sarcomere, leading to muscle contraction.
The actin and myosin filaments slide over each other, creating tension in the muscle as the Z lines are pulled closer together. This process of muscle contraction involves a cycle of molecular events as the thin actin filaments slide over the thick myosin filaments.
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