| A | B |
|---|
| Reactant | A substance that starts a chemical reaction. (Left Hand Side) |
| Product | A substance that is made in a chemical reaction (Right Hand Side) |
| Exothermic Reaction | A reaction that produces heat (Heat is a product) |
| Endothermic Reaction | A reaction that uses heat (Heat is a reactant) |
| Activation Energy | The amount of energy needed to start a chemical reaction. |
| Biochemical Reaction | Chemical reactions that take place inside of cells of living things |
| Metabolism | The sum of all biochemical reactions that occur in a cell. |
| Anabolic Reaction | An endothermic reaction inside of cells. It is generally used to bond smaller molecules into large molecules and therefore needs energy to do so. |
| Catabolic Reaction | An exothermic reaction inside of a cell. These break down larger molecules into smaller molecules and release energy |
| Enzyme | A protein that speeds up chemical reactions by lowering the activation energy of a reaction |
