Final answer:
In prokaryotic cells, ribosomes are located in the cytoplasm, and they are integral for protein synthesis. These organelles are also present in eukaryotic cells but have additional locations such as attached to the rough endoplasmic reticulum. Ribosomal RNA in eukaryotes is synthesized in the nucleolus.
Step-by-step explanation:
In prokaryotic cells, ribosomes are found in the cytoplasm. Ribosomes are essential organelles for protein synthesis, being present in both prokaryotic and eukaryotic cells. They consist of ribosomal proteins and ribosomal RNA. Prokaryotic cells, which lack a nucleus and other membrane-bound organelles, have their ribosomes directly distributed within the cytoplasm. These ribosomes are slightly smaller than their eukaryotic counterparts and are referred to as 70S ribosomes. In contrast, eukaryotic cells not only have ribosomes in their cytoplasm but may also have them bound to the rough endoplasmic reticulum or contained within organelles like mitochondria and chloroplasts. Moreover, in eukaryotic cells, ribosomal RNA components are synthesized in a special area within the nucleus, known as the nucleolus.