What type of nucleic acids are RNA and DNA classified as?

RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are classified specifically as nucleic acids. This classification is based on their structural and functional characteristics. Both RNA and DNA are polymers made up of nucleotide monomers, which consist of a phosphate group, a sugar, and a nitrogenous base.

Nucleic acids serve fundamental roles in the storage, transmission, and expression of genetic information. DNA stores the genetic blueprint for an organism, while RNA plays various roles, including acting as a messenger between DNA and the ribosomes where proteins are synthesized, as well as functioning in the catalytic activity of ribozymes.

In contrast, proteins are made up of amino acids, carbohydrates are made from sugar molecules, and lipids include fats and oils that are not formed from nucleotide monomers. Thus, identifying RNA and DNA as nucleic acids is essential, as this highlights their unique properties and functions within biological systems.