BIO 201 Lecture Notes - Lecture 17: Activation Energy, Enzyme, Phenylalanine
11 Apr 2017
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Increases the rate of the reaction: alters the path of a reaction, do not alter reactants or products, do not alter g of the reaction f. i. Don"t put energy in or take energy out: catalysts themselves are not itself permanently altered by the reaction g. i. All biologist reactions are temporarily altered by reaction, but revert back after g. ii. Enzymes are biological catalysts: most enzymes are proteins a. i. A few are rnas (ribozymes: the substrates are the reactants acted on by the enzyme b. i. When an enzyme catalyzes a reaction, it must bind to all of the reactants c. Substrates bind to the enzyme active site c. i. The shape and chemistry of the active site is essential c. i. 1. It must be the proper shape for the substrate to bind c. i. 1. a. Most enzymes are specific to one substrate c. i. 1. b. i. Most enzymes only catalyze one chemical reaction c. i. 2.
