Diff: 1 Page Ref: 290-291 16) The 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:D
Diff: 1 Page Ref: 290-291 16) The 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