Endoplasmic Reticulum (Smooth and rough)

Function of the smooth endoplasmic reticulum

A. Synthesis of lipids B. Metabolism of carbohydrates C. Calcium storage D. Detoxification of drugs and poisons

Functions of the rough endoplasmic reticulum

A. Synthesis of secretory and other proteins from bound ribosomes B. Adds carbohydrates to protein to make glycoproteins C. Produces new membrane

Structure

Extensive network of membrane-bounded tubules and sacs; continuous with nuclear envelope

Smooth endoplasmic reticulum

Free of ribosomes

Rough endoplasmic reticulum

Ribosome-studded