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Ch 2 sec 4
section 4 vocab words
| Question | Answer |
|---|---|
| Chemical reacion | a process that changes a set of chemicals into another set. |
| Reactants | elements or compounds that enter into a chemical reaction |
| products | elements or compounds that are produced by a chemical reaction |
| activation energy | the energy needed to get a reaction started |
| Catalysts | a substance that speeds up the rate of a chemical reaction. |
| Enzyme | proteins that act as biological catalysts and are very specific |
| active site | the site where reactants can be brought together to react |
| Enzyme-substrate complex | An enzyme and a substrate are bound together by intermolecular forces |
| substrates | the reactants of enzyme-catalyzed reactions |
| energy changes | factors that determine whether a chemical reaction will occur. |
| Energy-releasing vs. Energy-absorbing Reactions | energy that occurs spontaneously. energy that will not occur without a source of energy. |