Each nucleotide is made up of three components:

1. A phosphate group: This is a negatively charged group that gives RNA its acidic properties.

2. A sugar: In RNA, the sugar is ribose.

3. A nitrogenous base: There are four different nitrogenous bases in RNA:

* Adenine (A)

* Guanine (G)

* Cytosine (C)

* Uracil (U)

These nucleotides are linked together in a chain, forming the backbone of the RNA molecule. The sequence of nitrogenous bases along this chain is what determines the specific function of the RNA molecule.