Give the difference between a nucleoside and a nucleotide.

(N/A) The differences between a nucleoside and a nucleotide are as follows:
| Feature | Nucleoside | Nucleotide |
| :--- | :--- | :--- |
| Composition | Formed by the linkage of a pentose sugar and a nitrogenous base. | Formed by the linkage of a pentose sugar,a nitrogenous base,and a phosphate group. |
| Formation | $A$ nitrogenous base links with a ribose sugar to form a ribonucleoside. | When a ribonucleoside links with a phosphate group,a ribonucleotide is formed. |
| Deoxy form | $A$ nitrogenous base links with a deoxyribose sugar to form a deoxyribonucleoside. | When a deoxyribonucleoside links with a phosphate group,a deoxyribonucleotide is formed. |
| Examples | Cytidine,Uridine,Adenosine,Thymidine. | $AMP$,$GMP$,$UMP$,$CMP$. |
| Structure | Consists of a sugar and a base (e.g.,Adenosine). | Consists of a sugar,a base,and a phosphate group (e.g.,Adenosine monophosphate or $AMP$). |