Question

what is endoplasmic reticulum ? describe its types and functions.

Answer 1

There are two types of endoplasmic reticulum: rough endoplasmic reticulum(rough ER) and smooth endoplasmic reticulum (smooth ER). Both types are present in plant and animal cells. The two types of ER often appear as if separate, but they are sub-compartments of the same organelle.

Answer 2

A network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane...

it's functions are..

There are two types of endoplasmic reticulum: rough (granular) and smooth (agranular). The outer (cytosolic) face of the rough endoplasmic reticulum is studded with ribosomes that are the sites of protein synthesis. The rough endoplasmic reticulum is especially prominent in cells such as hepatocytes. The smooth endoplasmic reticulum lacks ribosomes and functions in lipid manufacture and metabolism, the production of steroid hormones, and detoxification...

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