The main function of the rough endoplasmic reticulum is the production of
A) mitochondria and proteins secreted by the cell.
B) hydrogen peroxide and steroid hormones secreted by the cell.
C) ribosomes and steroid hormones.
D) membrane and proteins secreted by the cell.

Question

Quizplus · Accepted Answer

The rough endoplasmic reticulum (RER) is studded with ribosomes, which synthesize proteins that are then folded and modified in the RER. The RER is also involved in the production of membrane proteins and lipids. These proteins and lipids can be incorporated into the RER membrane or transported to other parts of the cell via vesicles. Therefore, the main function of the RER is the production of membrane and proteins secreted by the cell. Choices A, B, and C are incorrect because the production of mitochondria, hydrogen peroxide, and steroid hormones do not occur in the RER.

The Main Function of the Rough Endoplasmic Reticulum Is the Production