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In muscle cells, which organelle sequesters Ca2+ from the cytosol?

Endosomes
Lysosomes
Mitochondria
Peroxisomes
Smooth ER

User Randy Hall
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1 Answer

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Final answer:

The smooth endoplasmic reticulum (SER) sequesters Ca2+ from the cytosol in muscle cells.

Step-by-step explanation:

The organelle in muscle cells that sequesters Ca2+ from the cytosol is the smooth endoplasmic reticulum (SER). The SER is a region of the endoplasmic reticulum that does not have ribosomes attached to it. It performs various functions including lipid synthesis, detoxification of certain chemicals, and storage of calcium ions.

User NickGreen
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