Question

What organic classification do nitrogenous bases belong to?

Options

• Aliphatic hydrocarbons

• Heterocyclic rings (purine or pyrimidine)

• Amino acids with peptide bonds

• Fatty acids with ester linkages

Answer 1

Nitrogenous bases are organic molecules classified as heterocyclic rings because they contain nitrogen atoms within their ring structures. They are further categorized into purines (double-ring structures) and pyrimidines (single-ring structures), both of which are essential for carrying genetic information in nucleic acids.