Biology, 28.11.2019 04:31, nisha87

Which of the following indicates that a muscle fiber is relaxed?

atp molecules are bound to the heads of the myosin filaments.

myosin heads are attached to actin filaments, forming cross bridges.

calcium ions are bound to troponin, causing the protein to change shape.

z lines are pulled toward the center of the sarcomere.

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Which of the following indicates that a muscle fiber is relaxed?

atp molecules are boun...