text: The most notable classes of biological macromolecules used in the fundamental processes of living organisms include:
  * Proteins, which are the building blocks from which the structures of living organisms are constructed (this includes almost all enzymes, which catalyse organic chemical reactions).
  * Amino acid, make up proteins, included the use in genetic code of life.
  * Nucleic acids, which carry genetic information.
  * Ribonucleic acid (RNA), production of proteins. 
  * Deoxyribonucleic acid (DNA), nucleic acid in genetic form.
  * Peptide, building block of proteins.
  * Lipids, which also store energy, but in a more concentrated form, and which may be stored for extended periods in the bodies of animals.
  * Phospholipid used in cell membrane.
  * Carbohydrates, which store energy in a form that can be used by living cells.
  * Lectin, for binding proteins. 
  * Monosaccharide, simple sugars, including glucose and fructose.
  * Disaccharides, sugar soluble in water, including lactose, maltose, and sucrose.
  * Starch, made of amylose and amylopectin, plants energy storage.
  * Glycogen, energy in animals.
  * Cellulose, a biopolymer, found in the cell walls of plants.
  * Fatty acid, two types, saturated fat and unsaturated fat (oil), are stored energy.
  * Essential fatty acid, needed but not synthesized by the human body.
  * Steroid, hormone, and used in cell membrane.
  * Neurotransmitter, are signaling molecules.
  * Cholesterol, used in the brain and spinal cord of animals.
  * Wax, found in beeswax and lanolin. Plant wax used for protection.