•Rough ER is responsible for synthesis and transport of proteins.
•Smooth ER is responsible for synthesis of lipids and smooth ER of liver cells detoxifies many drugs and unwanted substance entering our body.
•The endoplasmic reticulum forms the supporting skeletal framework of the cell.
•ER provides a pathway for the distribution of nuclear material from one cell to the other.
•ER forms the intercellular transport system of the cell.