Question

what is endoplasmic reticulum?​

Answer 1

Answer:

The endoplasmic reticulum is, in essence, the transportation system of the eukaryotic cell, and has many other important functions such as protein folding. It is a type of organelle made up of two subunits – rough endoplasmic reticulum, and smooth endoplasmic reticulum

Explanation:

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Answer 2

Endoplasmic reticulum is a network of membranes inside a cell through which proteins and other molecules move. Proteins are assembled at organelles called ribosomes. ... Smoothendoplasmic reticulum lacks ribosomes and helps synthesize and concentrate various substances needed by the cell.