Nucleic acids are biochemical macromolecules that store and transfer genetic information in the cell. They use their stored genetic information to direct the synthesis of new proteins in the cell. New proteins can be synthesized by the ribosomes from the DNA and genes held in the nucleic acids.
Nucleic acids are found in the chromosomes of every living cell. Chromosomes are found in the nucleus of every living cell. The nucleic acids are an important part of the chromosomes because they hold all the genes that comprise the DNA of the organism. The DNA constantly directs and maintains the organism's health and internal environment by directing the production of proteins, which directs the production of hormones, other proteins and enzymes.