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2.2
Energy
| Question | Answer |
|---|---|
| energy | the ability to do work |
| chemical reaction | one or more substances change to produce one or more different substances |
| reactant | any substance that undergoes a chemical change in a given reaction |
| product | a substance obtained from another substance through chemical change |
| metabolism | the term used to describe all of the chemical reactions that occur in an organism |
| activation energy | the amount of energy needed to start the reaction |
| catalyst | reduce the amount of activation energy that is needed for a reaction to take place |
| enzyme | a protein or RNA molecule that speeds up metabolic reactions without being permanently changed or destroyed |
| redox reaction | these reactions in which electrons are transferred between atoms are known as oxidation reduction reactions, or...? |
| oxidation reaction | a reactant loses one or more electrons, thus becoming more positive in charge |
| reduction reaction | a reactant gains one or more electrons, thus becoming more negative in charge |
Created by:
blehrner
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