Question

Differentiate between rough and smooth endoplasmic reticulum. How is endoplasmic reticulum important for membrane biogenesis?​

Answer 1

The ribosomes, which are present in all active cells, are the sites of protein synthesis. Endoplasmic reticulum also has ribosomes attached to its surface, proteins are synthesized and transported via vesicles to Golgi apparatus that helps in transporting these proteins to various places. The smooth endoplasmic reticulum helps in manufacturing of fat and lipids which along with proteins help in building the cell membrane or membrane biogenesis. As cell membrane consists of lipids and proteins.

Smooth Endoplasmic Reticulum (SER)

SER has no ribosomal particles on the surface, hence looks smooth SER helps in the manufacture of lipidsmand fat molecules.

Rough Endoplasmic Reticulum (RER)

RER has ribosome on the surface. Ribosomes are the sites of protein synthesis.

Hope it helps...

Answer 2

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Differentiate between rough and smooth endoplasmic reticulum. How is endoplasmic reticulum important for membrane biogenesis?

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The main difference between these two terminologies is that the Smooth Endoplasmic Reticulum is known for stocking the lipids and proteins. It is not bounded by ribosomes. Whereas, the Rough Endoplasmic Reticulum is bounded by the ribosomes and also stores proteins.It helps in manufacturing of lipids and fat molecules. ... Endoplasmic reticulum synthesizes lipids (smooth endoplasmic reticulum) and proteins (rough endoplasmic reticulum) which are responsible for formation of membrane. Thus, they help in membrane biogenesis.