In the sliding filament theory of muscle contraction, Step 4 (ready for bonding) would be the most affected if the myosin filaments did not change shape for bonding.
Step 4: ready for bonding would be most affected if the myosin filaments did not change shape for bonding in the sliding filament theory. This step involves the myosin heads binding to actin, forming cross-bridges that generate filament movement. If the myosin filaments did not change shape for bonding, this crucial binding process would be hindered, affecting the overall sliding filament mechanism.
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