In eukaryotic cells, they can be found attached to the _ or floating in the _ While in bacteria, all _ are free floating.

In eukaryotic cells, they can be found attached to the endoplasmic reticulum (ER) or floating in the cytoplasm. While in bacteria, all ribosomes are free-floating.

is it the rough endoplasmic reticulum or smooth endoplasmic reticulum

Apologies for the oversight. Ribosomes can be found attached to the rough endoplasmic reticulum (ER) or floating in the cytoplasm of eukaryotic cells, specifically on the surface of the rough ER. The smooth ER does not have ribosomes attached to its surface.

In eukaryotic cells, ribosomes can be found attached to the endoplasmic reticulum (ER) or floating in the cytoplasm. While in bacteria, all ribosomes are free floating.