17. what is the major function of the rough er?

17. what is the major function of the rough er?
Answer
Brief Explanations:
The rough endoplasmic reticulum (ER) has ribosomes attached to its surface. Its main function is protein synthesis and modification. Newly - synthesized proteins are folded and chemically modified within the lumen of the rough ER before being transported to other parts of the cell or secreted outside the cell.
Answer:
Protein synthesis and modification