Enzymes

What Are Enzymes? Many large proteins are enzymes Act as Catalyst to accelerates (speed up) a reaction

Enzymes Are specific for what they will catalyze Are Reusable End in –ase -Sucrase -Lactase -Maltase

How do enzymes Work? Enzymes work by weakening bonds which lowers activation energy The minimum amount of energy needed to start a reaction

Enzymes Without Enzyme With Enzyme Free Energy Progress of the reaction Reactants Products Free energy of activation

Enzyme-Substrate Complex The substance (reactant) an enzyme acts on is the substrate Enzyme Joins Substrate

Active Site A region of an enzyme molecule which binds to the substrate. Active Site Enzyme Substrate

Induced Fit A change in the shape of an enzyme’s active site Induced by the substrate

Things that change enzyme effectiveness Temperature high temps may denature the enzyme. Changes its shape and makes it nonfunctional pH most like pH between 6 - 8 pH (near neutral) Substrate and enzyme concentration High concentrations increase function Low concentrations decrease function

Let’s see how our bodies use enzymes daily