Carbon and the Molecular Diversity of Life

  • Carbon Chemistry   * Carbon is the backbone of biological molecules   * All living organisms are made up of chemicals based mostly on the element carbon   * Organic chemistry is the study of carbon compounds   * Carbon atoms can form diverse molecules by bonding to four other atoms   * Carbon compounds range from simple molecules to complex ones   * Carbon has four valence electrons and may from single, double, triple, or quadruple bonds   * The bonding versatility of carbon allows it to form many diverse molecules, including carbon skeleton   * The electron configuration of carbon gives it covalent compatibility with many different elements   * Carbon may bond to itself, forming carbon chains   * Carbon chains form the skeletons of most organic molecules   * Carbon chains vary in length and shape
  • Hydrocarbons   * Hydrocarbons are molecules consisting of only carbon and hydrogen   * Hydrocarbons are found in many of a cell’s organic molecules
  • Isomers   * Isomers are molecules with the same molecular formula but different structures and properties   * Three types of isomers are     * Structural     * Geometric     * Enantiomers       * Important in the pharmaceutical industry
  • Functional groups   * Functional groups are the parts of molecules involved in chemical reactions   * They are the chemically reactive groups of atoms within an organic molecule   * Each organic molecule has distinctive chemical properties