When a muscle is stimulated to contract,calcium release channels in the SR will release Ca²⁺ by A)active transport. B)facilitated diffusion. C)passive diffusion. D)exocytosis.

Question

Quizplus · Accepted Answer

Calcium release from the sarcoplasmic reticulum (SR) during muscle contraction occurs through passive diffusion, meaning it moves down its concentration gradient without the need for energy input.

When a Muscle Is Stimulated to Contract,calcium Release Channels in the SR