ribosomes have the same function in prokaryotes and eukaryotes
Prokaryotic ribosomes are smaller and have a slightly different shape and composition than those found in eukaryotic cells. Bacterial ribosomes, for instance, have about half of the amount of ribosomal RNA (rRNA) and one third fewer ribosomal proteins (53 vs. ~83) than eukaryotic ribosomes have. Despite these differences, the function of the prokaryotic ribosome is virtually identical to the eukaryotic version.
Prokaryotic vs Eukaryotic Ribosomes. The difference between the prokaryotic and eukaryotic organisms is the difference of the location that DNA exists as the name implies (Taylor, 1998). Eukaryotes have a membrane bound nucleus, which contains DNA, but prokaryotes lack a membrane bound nucleus (true nuclei).