Question

where do the lipids and proteins constituting the cell membrane get regenerated

Answer 1

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Answer:

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✔Proteins are synthesised in ribosomes of rough ER (RER) and lipids are synthesised over smooth ER (SER).

Extra Info:

=> The endoplasmic reticulum is a network of tube like structures from the nuclear membrane to the plasma (cell) membrane.

=> Endoplasmic reticulum is absent in prokaryotic cells and mammalian RBCs.

=> In rough endoplasmic retuculum, the ribosomes are on the outer surface while in smooth endoplasmic reticulum, ribosomes are not attached to them.

=> Lipids and proteins synthesised by the endoplasmic reticulum are used for making cell membrane for membrane biogenesis.

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