Question

Draw the structure of Nucleoside.

Answer 1

The structure of nucleoside contains a base and one with one pentose sugar. One can draw a neat and clean structure based on this data and try to mention all the functional groups present in it.

Complete step by step answer:

1. First of all we will discuss the structure of nucleoside and which components it has. The nucleoside is the structure same as the structure of a nucleotide but without the phosphate group present in it.
2. A structure of nucleoside has simply a nucleobase which can be called the nitrogenous base and a five-membered ring of carbon sugar. In the case of nucleotides, there is a nitrogenous base present along with the five carbon-containing sugar and a phosphate group present in it.
3. The nucleosides can be phosphorylated to form the nucleotides as the primary difference between a nucleotide and a nucleoside is the phosphate group.
4. Now let us see the structure of nucleoside as below,
   
5. Some examples of nucleoside are uridine, guanine, thiamine, adenosine.
6. In the structure of nucleoside, the anomeric carbon atom is linked to nitrogen number 9 or nitrogen number 1 of pyrimidine ring through a glycosidic bond.

Note:
The nucleoside and nucleotide are two different terms and one must not confuse with one another. The nucleoside with the phosphate group is called a nucleotide. One should always remember that nucleotides are the primary building blocks of DNA and RNA and not nucleosides and avoid confusion between these two terms.