In what type of organisms would you find ribosomes?

Ribosomes are essential cellular structures responsible for protein synthesis, and they can be found in both prokaryotic and eukaryotic cells. In prokaryotic cells, ribosomes are found freely floating in the cytoplasm and are smaller in size compared to those in eukaryotic cells. Eukaryotic cells, on the other hand, contain ribosomes in both the cytoplasm and on the surface of the endoplasmic reticulum, which is known as the rough ER, allowing for more extensive protein synthesis and processing due to compartmentalization. This presence in both types of cells highlights the fundamental role ribosomes play in translating messenger RNA into proteins, essential for all forms of life. Thus, the correct choice reflects the universality of ribosomes across diverse organisms.