| A | B |
| Substituted hydrocarbons | hydrocarbons in which one or more hydrogen atoms have been replaced with atoms of other elements |
| Lipids | biological compounds that include fats and oils |
| Unsaturated hydrocarbons | hydrocarbons that have at least one double or triple bond |
| Nucleic Acid | polymers that control the activities and reproduction of cells |
| Isomers | compounds with the same chemical formula but different molecular structures and shapes |
| Saturated hydrocarbons | hydrocarbons with only single bonds |
| Carbohydrates | biological compounds that contain twice as many hydrogen atoms as oxygen atoms |
| Aromatic Compounds | organic compounds whose structural formulas contain the benzene ring |
| Polymers | Large molecules made up of many smaller organic molecules that have formed new bonds and are linked together |
| Peptide | type of bond formed between two amino acids |
| Organic compounds | most compounds that contain carbon |
| Hydrocarbons | made up of only carbon and hydrogen atoms |
| Proteins | polymers formed from amino acids |
| Monomer | units that make up a polymer |
| Starch | polymer made up of sugar |