Question

what is the role of the sarcoplasmic reticulum in muscle contraction? group of answer choices it stores ca2 ions for release during contraction. it surrounds and protects the muscle filaments. it provides sites of atp synthesis. it depolarizes when stimulated by an impulse. it synthesizes actin and myosin filaments.

Answer 1

I believe it's a.it stores Ca++ ions for release during contraction