At the end of the contractile period, energy from the breakdown of ATP is used to
A) transport calcium back into the sarcoplasmic reticulum.
B) repair any muscle damaged during contraction.
C) digest energy sources to generate new ATP for the next round of contractions.
D) produce lactic acid.
E) unlink the troponin-tropomyosin complexes.

Question

Quizplus · Accepted Answer

Energy from the breakdown of ATP is used to actively transport calcium ions back into the sarcoplasmic reticulum, which is essential for muscle relaxation after contraction.

At the End of the Contractile Period, Energy from the Breakdown