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2.2
Term | Definition |
---|---|
energy | the ability to do work |
chemical reaction | when one or more substances change to produce one or more different substances |
reactants | on the left side of the equation; what will be arranged into a new compound |
products | on the right side of the equation |
metabolism | all of the chemical reactions that occur in an organism |
activation energy | the amount of energy needed to start the reaction |
catalysts | certain chemical reactions that reduce the amount of activation energy that is needed for a reaction to take place |
enzyme | a protein or RNA molecule that speeds up a metabolism without being permanently destroyed or changed |
redox reactions | electrons being transferred between atoms |
oxidation reaction | reactant losing one or more electrons, thus becoming more positive in charge |
reduction reaction | reactant gaining one or more electrons, thus becoming more negative in charge |