Which of the following events does not occur in rough endoplasmic reticulum

Which of the following events does not occur in rough endoplasmic reticulum?

(a) Phospholipid synthesis
(b) Cleavage of signal peptide
(c) Protein glycosylation
(d) Protein folding

Phospholipid synthesis

Phospholipid synthesis does not take place in RER. Smooth endoplasmic reticulum are involved in lipid synthesis.

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