Question

Cell organelle, which divides the intracellular space into luminal and extra luminal compartments and contain rough surface, is frequently observed in the cells actively involved in:

• A. Protein synthesis
• B. Lipid synthesis
• C. Carbohydrate synthesis
• D. r-RNA synthesis

Answer 1

The correct option is A Protein synthesis

The endoplasmic reticulum divides the intracellular space into two distinct compartments, viz. luminal and extra-luminal. The endoplasmic reticulum is a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the outer nuclear membrane. It usually has ribosomes attached which is called rough endoplasmic reticulum and is involved in protein synthesis.