So the only difference between a Nucleotide and a Nucleotide is in Nucleotides, we have the sugar and the base, as well as at least one of the phosphate groups attached to carbon number five on that sugar. Now, sometimes, as we'll see in just a moment, the phosphate group can also be attached to carbon number three. But usually in natural nucleotides found inside our body, we have the phosphate groups attached onto carbon number five. So a nucleotide attached to one or more phosphate groups is called the Nucleotide. And in most bio and in most biological nucleotides, the phosphate group is attached to the fifth carbon on that sugar. Now, perhaps one of the most prototypical examples the most famous examples of a nucleotide is adenosine five triphosphate or ATP.