Question

Why is smooth endoplasmic reticulum is known as sarcoplasmic reticulum?

Answer 1

Smooth endoplasmic reticulum:

1. The endoplasmic reticulum is a membrane-bound cell organelle that is made up of a complex network of tubes and is located in the cytoplasm of the eukaryotic cell.
2. Smooth endoplasmic reticulum (SER) is a type of endoplasmic reticulum that is a tubular structure that does not consist of ribosomes that give it a smooth appearance. The function of the smooth endoplasmic reticulum is the transportation of products secreted by the rough endoplasmic reticulum to other cell organelles.
3. Sarcoplasmic reticulum is a network of specialized smooth endoplasmic reticulum that is necessary for transmitting electrical impulses and also stores calcium ions.
4. The muscle cells are rich in smooth endoplasmic reticulum so they are known as sarcoplasmic reticulum (membrane-bound structure rich in muscle cells).