12. What role does calcium play within the sliding filament theory? 13. Why woul

Question

12. What role does calcium play within the sliding filament theory? 13. Why would overlap of actin and myosin increase muscle force production'? 14. What are the functional characteristics of muscle? 5. TRUE-FALSE T-F Amuscle's moment arm about a joint depends on joint angle T-F The moment of inertia of a body is always largest about the center of mass. T-F The slope of a distance-time graph represents velocity. T-F The physiological cross-sectional area of pennate muscle is the same as the anatomical cross-sectional area. T -F It is established that actin filaments slide toward the middle of myosin filaments during a muscle contraction.

Explanation / Answer

Answer=12] Role of calcium within the sliding filament theory:

Calcium ions bind to Troponin causing tropomyosin to move and reveal the binding sites.

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