| A | B |
|---|
| macromolecule | large molecules made of thousands of smaller molecules |
| monomer | small molecules joined together to form macromolecules |
| polymer | large molecules made by joining many similar smaller molecules |
| organic compounds | compounds containing carbon, hydrogen, and oxygen together |
| carbohydrates | main source of energy for living things |
| glucose | monosaccharide used as energy source by all life |
| monosaccharide | simple single sugar |
| starch | polysaccharide made from repeating units of glucose |
| lipids | macromolecules that are used as storage of chemical energy |
| saturated lipid | carbon chain has only carbon to carbon single bonds, is holding maximum amount of hydrogen atoms |
| unsaturated lipid | carbon chain has at least one carbon to carbon double bond |
| oils | lipids that are liquid at room temperature, usually contain unsaturated lipids |
| fats | lipids that are solid at room temperature, usually contain saturated lipids |
| proteins | polymers made from amino acids that have diverse functions |
| amino acid | monomers that link together to form protein polymers |
| amino group | part of an amino acid, a nitrogen atom bonded to two hydrogen atoms |
| carboxyl group | part of amino acid, carbon atom double bonded to an oxygen and bonded to an -OH group |
