Multiple Choice
The sarcoplasmic reticulum stores ____ when a muscle is relaxed and releases it for binding to ____ during contraction.
A) calcium; troponin
B) calcium; tropomyosin
C) sodium; tropomyosin
D) potassium; tropomyosin
E) sodium; troponin
Correct Answer:
Verified
Correct Answer:
Verified
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