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Vocab 2.2

Terms for chapter 2 section 2

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
Created by: SheaM16