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2.5 Enzymes

Vocabulary Chapter 2 Chemistry of Life Biology - 2010 Edition Holt McDougal
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catalyst
substance that decreases activation energy and increases reaction rate in a chemical reaction
enzyme
protein that catalyzes chemical reactions for organisms
substrate
reactant in a chemical reaction upon which an enzyme acts
chemical reaction
process by which substances change into different substances through the breaking and forming of chemical bonds
activation energy
energy input necessary to initiate a chemical reaction
protein
polymer composed of amino acids linked by peptide bonds; folds into a particular structure depending on bonds between amino acids
hydrogen bond
attraction between a slightly positive hydrogen atom and a slightly negative atom