| A | B |
| capillary action | tendency of water to rise in a thin tube |
| cohesion | attraction between molecules of the same substance |
| adhesion | attraction between different substances |
| polar | the uneven distribution of charges in a moelcule |
| lipid | any one of a group of organic compounds that includes oils, fats and waxes |
| carbohydrates | major source of food energy for the human body composed of carbon, hydrogen and oxygen |
| vitamin K | essential for blood to clot properly |
| vitamin A | important for growth of skin cells and vision |
| vitamin C | essential for helping wounds to heal |
| inorganic | a type of molecule that does not contain to or more carbons but contains any other combination of elements |
| organic | term used to describe molecules that contain both carbon and hydrogen |
| proteins | compound consisting of one or more chains of amino acids |
| nucleic acids | large complex organic molecule that contains the instructions cells need to carry out their life processes |
| enzymes | proteins that speed up the rate of chemical reactions in living things |
| substrate | the substance on which an enzyme acts |
| amino acid | any one of several building blocks of protein |
| monosaccharide | the simplest type of carbohydrate; a simple sugar; building block of carbohydrate |
| macromolecule | large molecule linked together by subunits |
| DNA | the material found in all cells that contains genetic information about that organism |
| RNA | the nucleic acid that carries out the instructions coded in DNA |