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

ScienceClass 9CBSEAnswered 27 Mar 2026
Answer

Soln:

Rough Endoplasmic reticullum

Smooth Endoplasmic reticullum

RER Looks rough under Microscope

SER varies greatly in appearance in different cells

Robosomes are present on all active cells

Ribosomes are not present on SER

They are the sites of protein manufacturing

helps in manufacture of fat molecules

Proteins are transported to various sites from here

Detoxification of drug takes place

Science · Class 9