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Chapter 2, Section 2
Vocab for 2.2 Biology
Term | Definition |
---|---|
Activation Energy | The minimum amount of energy required to start a chemical reaction |
Catalyst | A substance that changes the rate of a chemical reaction without being consumed or changed significantly |
Chemical Reaction | The process by which one or more substances change to produce one or more different substances |
Energy | The capacity to do work |
Enzyme | A type of protein or RNA molecule that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed |
Metabolism | The sum of all chemical processes that occur in an organism |
Oxidation Reaction | A chemical reaction in which a reactant loses one or more electrons such that the reactant becomes more positive in charge |
Product | A substance that forms in a chemical reaction |
Reactant | A substance or molecule that participates in a chemical reaction |
Redox Reaction | A reaction in which electrons are transferred between atoms; also known as oxidation-reduction reaction |
Reduction Reaction | A chemical change in which electrons are gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons |