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- 1. Multiple Choice
This reaction shows a(n) ____________ reactionCatabolicAnabolicDehydration SynthesisHalogenation - 2. Multiple ChoiceThe area that the substrate fits into on the enzyme is called the:Active SiteAllosteric SiteDiSulphide Bridgeβ-Pleated Sheet
- 3. Multiple ChoiceThe current model of enzyme action is referred to as the:Induced Fit ModelLock & Key ModelSinger-Nicolson ModelDavson-Danielli Model
- 4. Multiple ChoiceEnzymes catalyze reactions by ___________ Activation Energy.IncreasingDecreasing
- 5. Multiple ChoiceEnzymes speed up reaction rates by changing:Activation EnergypHHydrogen BondsKinetic Energy
- 6. Multiple ChoiceAt high temperatures enzyme activity declines because of:DenaturationDecreased Kinetic MotionIncreased H-BondingDissociation of Ionic Compounds
- 7. Multiple ChoiceAt low temperatures enzyme activity declines because of:DenaturationDecreased Kinetic MotionIncreased H-BondingDissociation of Ionic Compounds
- 8. Multiple ChoiceMost enzymes have the ending:-ase-ose-ic acid-ate
- 9. Multiple ChoiceThe molecule an enzyme is working on is called the:SubstrateSolventAllosteric InhibitorCoEnzyme
- 10. Multiple ChoiceWhen a molecule can occupy the same active site as the substrate, a situation called __________________ can resultCompetitive lnhibitionAllosteric RegulationNon-Competitive InhibitionFeedback Inhibition
- 11. Multiple ChoiceA receptor site that a molecule can bind to that changes the shape of the active site is called a(n):Allosteric SiteActive SiteDiSulphide BridgeMHC Receptor
- 12. Multiple ChoiceA molecule binds to an enzyme and opens the active site so it can bind to the substrate. This is called:Allosteric ActivationAllosteric InhibitionCompetitive ActivationCompetitive Inhibition
- 13. Multiple ChoiceA molecule binds to an enzyme and decreases the ability of the active site to bind to the substrate. This is called:Allosteric ActivationAllosteric InhibitionCompetitive ActivationCompetitive Inhibition
- 14. Multiple ChoiceMolecules that bind to enzymes and enhance an enzyme's ability are called:CoFactorsCoEnzymesAllosteric InhibitorsAllosteric Activators
- 15. Multiple ChoiceOrganic molecules that temporarily bind to enzymes and enhance an enzyme's ability are called:CoFactorsCoEnzymesAllosteric InhibitorsAllosteric Activators
- 16. Multiple ChoiceThis type of reaction is a:Dehydration SynthesisNeutralizationRedOx ReactionPhosphorylation
- 17. Multiple ChoiceA reaction where electrons are moved around is a:NeutralizationHydrolysisRedOx ReactionPhosphorylation
- 18. Multiple ChoiceAn enzyme that changes glucose into fructose would be a(n):IsomeraseLyaseOxidoreductaseTransferase
- 19. Multiple ChoiceWhich explanation best fits the graph for pH's effect on an enzyme?As the pH gets closer to neutral more H-Bonds are brokenLarger numbers of H+ & OH- ions distort the active siteThere are more collisions between substrates and active sites near the optimal pHLow pHs cause more H-Bonds to happen near the active site
- 20. Multiple ChoiceWhat enzyme is likely to catalyze this reaction?KinaseOxidoReductaseIsomeraseTransferase
- Answer choicesTagsAnswer choicesTags