After contraction has occurred, the Ca 2+ are

The correct answer is that after contraction has occurred, the calcium ions (Ca2+) are released from troponin. This release allows the muscle to relax by enabling the tropomyosin to cover the binding sites on the actin filaments again, preventing further cross-bridge formation between actin and myosin, which is necessary for muscle contraction.

After contraction has occurred, the Ca 2+ are

The correct answer is that after contraction has occurred, the calcium ions (Ca2+) are released from troponin. This release allows the muscle to relax by enabling the tropomyosin to cover the binding sites on the actin filaments again, preventing further cross-bridge formation between actin and myosin, which is necessary for muscle contraction.

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After Contraction Has Occurred, the Ca²⁺ Are

Question 82

Multiple Choice

After contraction has occurred, the Ca²⁺ are

A) destroyed by cholinesterase.
B) chemically bound to the cross bridges.
C) secreted by the Golgi apparatus to the outside of the cell.
D) released from troponin.
E) returned to the sarcolemma.

Correct Answer: