The endoplasmic reticulum is a site for
A)potassium storage in muscle cells.
B)drug detoxification by catalase.
C)N-linked glycosylation of polypeptides.
D)addition of lipid residues.
E)both choices B and C

Question

Quizplus · Accepted Answer

The endoplasmic reticulum (ER) is responsible for N-linked glycosylation of polypeptides, which is the process of adding sugar molecules to proteins. This modification helps stabilize the protein structure and aids in protein trafficking. While the ER is involved in lipid metabolism and drug detoxification (choices B and D), these are not the primary functions of the organelle. Potassium storage (choice A) is not a known function of the ER.

The Endoplasmic Reticulum Is a Site for