Chemical Reactions and Enzymes
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These flashcards cover key vocabulary terms and definitions related to chemical reactions and enzymes.
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11 Terms
Chemical reaction
A process that involves the rearrangement of the molecular or ionic structure of a substance.
Reactant
A substance that takes part in and undergoes change during a reaction.
Enzyme
Proteins that act as biological catalysts to accelerate chemical reactions.
Product
The substances that are produced as a result of a chemical reaction.
Catalyst
A substance that increases the rate of a reaction by lowering the activation energy.
Substrate
The reactant that an enzyme acts on.
Activation energy
The minimum amount of energy needed for reactants to form products.
Active site
The specific region on an enzyme where the substrate binds.
Exothermic reaction
A chemical reaction that releases energy in the form of heat.
Endothermic reaction
A chemical reaction that absorbs energy in the form of heat.
Inhibitor
A substance that decreases enzyme activity by binding to the active site.
Note 
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