Multiple Choice QuestionThe sarcoplasmic reticulum of a muscle fiber is the Blank______.Multiple choice question.Endoplasmic reticulumPlasma membraneNucleusCytoplasm
Question
Multiple Choice QuestionThe sarcoplasmic reticulum of a muscle fiber is the Blank______.Multiple choice question.Endoplasmic reticulumPlasma membraneNucleusCytoplasm
Solution
The sarcoplasmic reticulum of a muscle fiber is the Endoplasmic reticulum.
Here's why:
The sarcoplasmic reticulum is a specialized type of endoplasmic reticulum found in muscle cells. Its main function is to store and release calcium ions (Ca2+), which are necessary for muscle contraction. The term "sarcoplasmic" is derived from "sarco-" meaning "flesh" and "plasmic" referring to the cytoplasm, indicating its muscle-specific role.
So, in the context of a muscle fiber, the sarcoplasmic reticulum is essentially a version of the endoplasmic reticulum. Therefore, the correct answer to your multiple-choice question is "Endoplasmic reticulum".
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