ABSTRACT
Proteins Proteins are the polymers of amino acids which constitute the principal structural unit of protoplasmic organelles, enzymes, and other macromolecules of biological importance. It serves as the energy source and source of nitrogen for organisms. Proteins in plants are synthesized within the body cells through a genetically controlled machinery by virtue of nuclear DNA and ribosomes. DNA produces messenger RNA by transcription. The sequence of m-RNA translates specific sequence of amino acids to produce a polypeptide chain which later undergoes post, synthetic processing transformed into primary, secondary and tertiary proteins essential for maintenance of life in a cell. DNA acts as the central dogma of protein synthesis which especially is controlled by genes present in DNA.
