Rough endoplasmic reticulum and smooth endoplasmic reticulum differ
A) only by the presence (RER) or absence (SER) of ribosomes.
B) both in the presence (RER) or absence (SER) of ribosomes and in their function.
C) only in microscopic appearance.
D) only in their function.
E) None of the above

Question

Quizplus · Accepted Answer

Rough endoplasmic reticulum (RER) has ribosomes attached to its surface, while smooth endoplasmic reticulum (SER) does not. Both RER and SER have different functions: RER is involved in protein synthesis and folding, while SER is involved in lipid synthesis, detoxification, and calcium storage. Therefore, both the presence or absence of ribosomes and their functions differentiate RER and SER.

Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum Differ