| A | B |
|---|
| enzymes only like a certain substrate. they are | specific |
| the chemical which an enzyme reacts with | substrate |
| when an enzyme has been detsroyed, it's been | denatured |
| speeds up chemical reactions | catalyst |
| favorite | optimum |
| region on an enzyme where the substrate fits | active site |
| enzymes are made from | protein |
| enzymes are | biological catalysts |
| factors affecting enzyme action | temperature, pH |
| how an enzyme fits with its substrate | lock and key |
| process that changes one set of chemicals into another set of chemicals | chemical reaction |
| energy needed to get a reaction started | activation energy |
| substances to the right of chemical equations | products |
| substances to the left of chemical equations | reactants |
| breaking chemical bonds; forming new bonds in products | chemical reactions always involve |
| will not occur without a source of energy; products contain more energy than their reactants | Energy-absorbing Reaction (endergonic) |
| occurs spontaneously; products contain less energy than their reactants | Energy-Releasing Reaction (exergonic) |
| enzyme that breaks down H2O2 formed in cells into H2O & O2 gas | catalase |
| H2O2 | peroxide |
| enzyme and substrate bonded together | enzyme-substrate complex |
| reused | enzymes remain unchanged and can be _____ |
| specific | each enzyme acts on a ______ substrate |
