Question

He major function of the sarcoplasmic reticulum in muscle contraction is to:

A) make and store phosphocreatine
B) synthesize actin and myosin myofilaments
C) provide a source of myosin for the contraction process
D) regulate intracellular calcium concentration

Answer 1

D) regulate intracellular calcium concentration

Step-by-step explanation:

The sarcoplasmic reticulum stores calcium and releases it upon muscle fiber excitation which allows muscle contraction to occur.