What is the job of the rough ER in the liverSolutionThis is

What is the job of the rough ER in the liver?

This is an extensive organelle composed of greatly convoluted but flattish sealed sacs which are contiguous with the nuclear membrane.it is rough endoplasmic reticulum. Because studded on its outer surface with ribosome. It is protein folding unit. It\'s job is protein quality control section,rigorous quality control