Question

what is the main function of the rough endoplasmic reticulum in an animal cell?
a. to facilitate cell division
b. to support movement within the cell
c. to help ribosomes make proteins
d. to break down waste and worn - out cell parts

Explanation:

The rough endoplasmic reticulum (RER) has ribosomes attached to its surface. These ribosomes synthesize proteins, and the RER helps in the folding, modification, and transport of these newly - made proteins.

Answer:

to help ribosomes make proteins