Question

what is endoplasmic reticulum ​

Answer 1

Answer:

Endoplasmic reticulum (ER), in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins .

Answer 2

${\purple{\sf\underline{Endoplasmic\: Reticulum}}}$

⟹ The endoplasmic reticulum (ER) is so fine in structure that its existence is revealed only through an electron microscope. It is an irregular network of double membranes distributed over the entire cytoplasm in a cell.

• At its outer end, endoplasmic reticulum is connected with the cell membrane.
• At its inner end it is connected with the nuclear membrane.
• It appears rough when small granules called ribosomes are attached to it and appears smooth without them.
• It forms the supporting framework of the cell and also serves as a pathway for the distribution of the materials from one part of the cell to the other.