The primary reservoir for calcium that is released during excitation-contraction coupling in a skeletal muscle fiber is

A. sarcoplasmic reticulum.
B. endoplasmic reticulum.
C. transverse tubules.
D. Golgi bodies.
E. troponin.


A. sarcoplasmic reticulum.

Biology & Microbiology

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Which cycle involves materials moving through a series of transfers from living to nonliving systems and then back again?

A) biogeochemical B) geological C) uranium-lead D) continental

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