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Vocab 2.2
Terms for chapter 2 section 2
| Question | Answer |
|---|---|
| energy | the capacity to do work |
| chemical reaction | the process by which one or more substances change to produce one or more different substances |
| reactant | a substance or molecule that participates in a chemical reaction |
| product | a substance that forms in a chemical reaction |
| metabolism | the sum of all chemical processes that occur in an organism |
| activation energy | the minimum amount of energy required to start a chemical reacion |
| catalyst | a substance that changes the rate of a chemical reaction without being consumed or changed significantly |
| enzyme | a type of protein or RNA molecule that speeds up metabolic reactions in plant and animals without being permanently changed or destroyed |
| redox reaction | a reaction in which electrons are transferred between atoms; also known as an oxidation-reduction reaction |
| oxidation reaction | a chemical reaction in which a reaction loses one or more electrons such that the reaction becomes more positive in charge |
| reduction reaction | a chemical change in which electronsmare gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons |
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SheaM16
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