| Term | Definition |
| saturated hydrocarbon | Straight-chain or branched chain saturated hydrocarbon in which all bonds between carbon atoms are single covalent bonds |
| unsaturated hydrocarbons | a hydrocarbon in which one or more of the bonds between carbon atoms is double or triple |
| isomers | molecules with the same molecular formula but different structural formulas |
| fossil fuels | A hydrocarbon deposit, such as petroleum, coal, or natural gas, derived from living matter of a previous geologic time and used for fuel |
| organic compunds | always contain carbon & hydrogen & usually are associated with living things |
| polymers | carbohydrates,protiens, and nucleaic acids are all ____ |
| monomers | units that serve as the building blocks of polymers |
| carbohydrates | energy rich organic compounds made up of the elements carbon hydrogen and oxygen |
| proteins | macromolecules that contain nitrogen as well as carbon, hydrogen, and oxygen |
| amino acids | nitrogen containing monomer used to build proteins (20 types) |
| nucleic acids | very long organic compounds made up of carbon, hydrogen, nitrogen, and phosphurous, contain instructions that cells need to carry out all the functions of life |