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Which Statement BEST Describes the Activity of the Protein Cross-Bridges

Question 7

Multiple Choice

Which statement BEST describes the activity of the protein cross-bridges during an isometric muscle contraction?


A) Cross-bridge tension is greater than external forces.
B) Actin and myosin slide and become closer to each other.
C) Cross-bridge tension equals external forces.
D) Actin and myosin become farther apart.

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