Nucleotides are organic compounds made up of phosphate and nucleoside.
They function as monomeric units of the deoxyribonucleic acid and ribonucleic acid polymers, which are both crucial macromolecules for all kinds of life on Earth.
A molecule is made up of comprised of a nitrogen-containing base (in DNA, adenine, guanine, thymine, or cytosine; in RNA, adenine, guanine, uracil, or cytosine), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA).
Purines:
One of the two chemical substances that cells use to create the constituent parts of DNA and RNA is a purine.
Purine is a heterocyclic aromatic chemical molecule composed of two fused rings.
It dissolves in water.
Purine also refers to a broader family of compounds known as purines, which includes substituted purines and related tautomers.
Adenine and guanine are two examples of purines.
The body converts them into uric acid, which is excreted in the urine.
Pyrimidines:
One of the two chemical substances that cells use to create the constituent parts of DNA and RNA is a pyrimidine.
Pyrimidine is one of two kinds of heterocyclic nitrogenous bases found in the nucleic acids DNA and RNA: cytosine and thymine in DNA, and uracil in RNA.
Thymine, cytosine, and uracil are pyrimidine examples.