Question

The smooth ER differs from the rough ER in that:A. The rough ER is the site of mRNA transcription, smooth ER is the site of proteintranslation.B. The smooth ER produces carbohydrates and lipids, rough ER produces proteins.C. The smooth ER produces proteins, rough ER produces lipids.D. The rough ER contains no ribosomes, the smooth ER contains ribosomes.

Answer 1

The rough ER (RER) has ribosomes attach to the it surface, while the smooth ER (SER) does not have ribosomes attached to it surface, being the SER responsible for the production of carbohydrates and lipids, while the RER produces proteins because of the presence of ribosomes that act in the translation of the mRNA (B).