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

1. Protein folding

2. Cleavage of signal peptide

3. Protein glycosylation

4. Phospholipid synthesis

Doubtly Asked 30 Oct 2026 NEET UG 2018 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 4. Phospholipid synthesis

Key idea: The rough ER has ribosomes and handles proteins that enter its lumen.

Protein folding, cleavage of the signal peptide and glycosylation all occur in the RER.
Phospholipid (lipid) synthesis happens on the smooth ER.

Answer: option 4.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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