The Rough ER is the Site Of

Question

The rough ER is the site of
A) fatty acid and steroid synthesis.
B) Krebs cycle activity.
C) protein synthesis.
D) intracellular water storage.

Accepted Answer

The rough endoplasmic reticulum (ER) is studded with ribosomes, giving it a "rough" appearance. These ribosomes translate mRNA into proteins that are then folded and modified by the rough ER before being transported to their final destinations in the cell, such as the Golgi apparatus or cell membrane. The rough ER is therefore heavily involved in protein synthesis.