A2 Biology - Muscle Structure (Actin and Myosin)

A2 Biology - Coordination topic. Description of the structure of striated muscle, including the sarcolemma and multinucleate nature. Composition of myofibrils with myosin and actin filaments. Comparison of relaxed and contracted myofibrils, comparing lengths of sarcomere, H-zone, A-Band and I-Band.

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