Question Detail
Question
Regulation of calcium in muscle cells is a function of the _________
Correct Answer
Option B is the correct answer.
Detailed Explanation
In muscle cells, a specialized form of smooth endoplasmic reticulum (sER) called the sarcoplasmic reticulum plays a crucial role in regulating calcium ion (Ca2+) concentration. It releases calcium to trigger muscle contraction and sequesters it to allow relaxation.
Hint
Which type of ER is involved in calcium storage and release in muscle cells?