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BIO NMDCAT Cytoplasmic Organelles
nmdcat.online July 4, 2026

50. The biochemical process of O-linked glycosylation, where sugar chains are attached to the hydroxyl groups of serine or threonine residues, takes place exclusively in the

A. Rough endoplasmic reticulum lumen
B. Golgi apparatus
✓
C. Cytosolic matrix
D. Mitochondrial intermembrane region

📝 Explanation

While N-linked glycosylation begins in the ER, O-linked glycosylation occurs exclusively within the compartments of the Golgi apparatus.

📖 Additional Information

  • Rough endoplasmic reticulum lumen
  • Golgi apparatus
  • Cytosolic matrix
  • Mitochondrial intermembrane region

While N-linked glycosylation begins in the ER, O-linked glycosylation occurs exclusively within the compartments of the Golgi apparatus.

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