Now, prokaryotic organisms also contain structures called ribosomes, just like eukaryotes do. But the types of ribosomes, the structure itself is different in the two types of organisms, as we'll see in just a moment. The ribosomes is basically the location where we synthesize our proteins. Now, finally, we also have a structure known as the flagella or the flagella. And the flagella is basically the structure that allows our organism to move. Now, we're going to discuss this in a future lecture.