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Enzymes By Jawad Khawaja

Final Exam Project Biology

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EnzymesBy Jawad KhawajaEnzymesProteins that act as biological catalystsCatalysts increase the rate of a chemical reactionEnzyme Substrate ComplexSubstrate the reactants of enzymecatalyzed reactions!cti"e site # where the substrates bind on an enzymeEnzyme substrate complex$hen the enzyme and substrate come together% they form an enzymesubstrate complex&n the reaction the enzyme binds to the substrate forming the enzyme substrate complex% con"erting the substrates to products'(hings that Effect Enzyme )unctionShape of the enzyme(emperaturep*+egulatory ,olecules- (opics that relate to Enzymes.' /0! Polymerase1' !cti"e (ransport-' Proteins*ow /0! Polymerase relates to Enzymes(he principle enzyme /0! polymerase is in"ol"ed in /0! replication'*ow !cti"e (ransport relates to EnzymesEnzymes are proteins and in acti"e transport% small molecules and ions are carried across membranes by proteins in the membrane that act li2e pumps'*ow Protein relates to Enzymes Enzymes are proteins and proteins are macromolecules that contain nitrogen as well as carbon% hydrogen% and oxygen' (hey are also polymers of molecules called !mino !cids'3uestion .$hat are enzymes4!nswer to 3uestion .Enzymes are proteins that are catalysts of chemical reactions'3uestion 1Explain how enzymes wor2% including the role of the enzymesubstrate complex!nswer to 3uestion 1Enzymes speed up chemical reactions that ta2e place in cells and when the enzyme and substrate come together% they form an enzymesubstrate complex3uestion -$hich of the following statements is false with respect to an enzyme5s ability to catalyze a reaction4a) !n enzyme pro"ides a reaction surface and a suitable en"ironment for the reaction to ta2e place' b) !n enzyme binds reactants such that they are positioned correctly and can attain their transitionstate configurations' c) !n enzyme allows the reaction to go through a less stable transition state than would normally be the case' d) !n enzyme can wea2en bonds in reactants through the binding process' !nswer to 3uestion -Correct answer:c) !n enzyme allows the reaction to go through a less stable transition state than would normally be the case'3uestion 6$hich of the following statements is not true regarding the acti"e site of an enzyme4a) !n acti"e site is normally a hollow or cleft on the surface of an enzyme' b) !n acti"e site is normally hydrophilic in nature' c) Substrates fit into acti"e sites and bind to functional groups within the acti"e site' d) !n acti"e site contains amino acids which are important to the binding process and the catalytic mechanism' !nswer to 3uestion 6Correct answer:b) !n acti"e site is normally hydrophilic in nature'3uestion 7$hich of the following statements is incorrect with respect to an enzyme5s ability to catalyse a reaction4a) an enzyme pro"ides a reaction surface and a hydrophilic en"ironment for the reaction to ta2e place b) an enzyme binds reactants such that they are positioned correctly and can attain their transitionstate configurations c) an enzyme allows the reaction to go through a more stable transition state than would normally be the case d) an enzyme can wea2en bonds in reactants through the binding process !nswer to 3uestion 7Correct answer:a) an enzyme pro"ides a reaction surface and a hydrophilic en"ironment for the reaction to ta2e place. Career (hat relates to Enzymes)orensic Scientist relate to Enzyme because Enzymes are biomolecules that catalyze important biochemical reactions' 8nderstanding the function of enzymes has allowed scientists to harness their properties to dri"e specific laboratory processes'