Question

Which of the following is true about rough endoplasmic reticulum?

• A. It is studded with ribosomes that form a bumpy coat.
• B. It functions in lipid synthesis.
• C. It contains cellulose, which gives the membrane rigidity and structure.
• D. It lacks the ribosomes characteristic of the cytosol.
• E. It engages in lipid synthesis, which gives it a rough texture.

Answer 1

The correct option is A It is studded with ribosomes that form a bumpy coat.

The endoplasmic reticulum is a network of membranes found throughout the cell and connected to the nucleus. It is of two types RER and SER. Rough ER (RER) is the endoplasmic reticulum attached with the ribosomes on the outer surface and thus, involves the formation and transportation of proteins. The presence of the ribosomes on RER forms a bumpy coat.

Thus, the correct answer is option 'It is studded with ribosomes that form a bumpy coat'.