Question

the folded organelle just outside of the nucleus that is covered in ribosomes and plays a role in protein synthesis is called the
folded golgi aparatus
smooth endoplasmic reticulum
membrane - bound mitochondria
rough endoplasmic reticulum

Explanation:

The rough endoplasmic reticulum is located near the nucleus, has ribosomes attached to its surface, and is involved in protein synthesis.

Answer:

D. rough endoplasmic reticulum