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EnzymesAllchemicalreactionsconvertreactantstoproducts.Ex.2HCl+MgMgCl2+H2Enzymesareaclassofprotein.Thejobofanenzymeistocatalyzeareaction(helpitgetstarted).第一页，共十六页。第二页，共十六页。第三页，共十六页。第四页，共十六页。第五页，共十六页。第六页，共十六页。Enzymeslowertheamountofenergyneededtogetthereactiongoing–activationenergy.第七页，共十六页。ExamplesDNApolymerase–makesDNARennin–curdlesmilkproteinLipase–breaksdownfatsProtease–breaksdownproteinsUsuallyendwith“-ase〞第八页，共十六页。Howdoenzymeswork?Thematerialthatanenzymeworksoniscalledasubstrate.Enzymesworklikealockandkey–musthaverightenzymeforeachsubstrate.第九页，共十六页。Howdoenzymeswork?Theactivesiteontheenzymeiswhatbindstothesubstrate.Whyenzymes?SpecificnessandReusingenzymes第十页，共十六页。EnzymeShapeTheshapeofeachproteinisdeterminedbythesequenceofaminoacidsusedtomakethatprotein.Justasforproteins,shapeisextremelyimportant.Ifproteins/enzymesdon’thavethecorrecttemperature,pH,orsaltconcentration,theywilllosetheirshapeordenatureandnotbeabletofunction.Denaturing第十一页，共十六页。第十二页，共十六页。第十三页，共十六页。://lewport.wnyric.org/jwanamaker/animations/Enzyme%20activity.htmlTutorialactivity第十四页，共十六页。CompetitiveInhibitionInaprocesscalledcompetitiveinhibition,moleculesthatfittheactivesitecanpreventtheenzymefromworking.第十五页，共十六页。内容总结Enzymes。Usuallyendwith“-ase〞。://lewport.wnyric.org/jwanamaker/animations/Enzyme%20activity.html。CompetitiveInhibition第十六页，共十六页。