| A | B |
| Macromolecules | are large molecules that are formed by joining smaller organic molecules together |
| Polymers | are made from repeating units of identical or nearly identical compounds called monomers |
| Carbohydrates | are composed of carbon, hydrogen and oxygen with a ratio of 1:2:1 |
| Lipids | are molecules made mostly of carbon and hydrogen |
| Saturated fats | when the carbon atoms cannot bond with anymore hydrogen atoms |
| Unsaturated fats | when carbon atoms can bond with hydrogen atoms |
| Phospholipids | a lipid responsible for the structure and function of the cell membrane |
| Protein | is made of small carbon compounds called Amino Acids |
| Amino acids | 20 different amino acids are made of carbon, nitrogen, oxygen hydrogen and sometimes sulfer |
| Nucleic Acid | are complex macromolecules that store and transmit genetic information |
| Nucleotides | repeating subunits of nucleic acids, made make three units: a phosphate, a nitrogenous base and a sugar |
| DNA | is the "genetic code" and stores all instructions of organisms to grow, reproduce and adapt |
| RNA | the main function is to use information stored in DNA to make proteins |