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- 1. Multiple Choicethe pH at which an enzyme is most efficient is called the _________ pH of an enzymeneutraloptimumminimumexperimental
- 2. Multiple ChoiceWhat makes an enzyme substrate specific?SizeShapeNameLocation it is found in
- 3. Multiple Choice
Which of the following conclusions can be drawn from this graph?The optimum pH of the enzyme is 6.6.The optimum pH of the enzyme is 5.8The enzyme’s activity increases as pH increases 5.0 to 9.0The enzyme’s activity is greater around pH of 8.0 . - 4. Multiple ChoiceWhat type of macromolecule are enzymes?ProteinCarbohydrateLipidNucleic Acid
- 5. Multiple ChoiceEnzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature?they diethey denaturethey change their amino acid sequencethey are un-changed
- 6. Multiple ChoiceThe part of the enzyme that the substrate bonds to is called the _____.active siteactivation energybond sitepeptide bond
- 7. Multiple ChoiceWhich of these do NOT affect enzyme activity?TemperaturepHCompetitive InhibitorsCarbohydrates
- 8. Multiple ChoiceWhich of these is NOT true.Enzymes can denature (change shape) when the temperature gets too high.Enzymes can only be used once in a chemical reaction.pH can denature enzymesEnzymes speed up chemical reactions.
- 9. Multiple ChoiceWhich of these is most likely an enzyme? (Based on the suffix)SucroseGalactoseFructoseAmylase
- 10. Multiple ChoiceWhich is NOT true?Enzymes speed up chemical reactionsEnzymes react best at a specific temperatureEnzymes only control ONE type of reactionEnzymes are made of lipids
- 11. Multiple ChoiceWhat is another name for enzymes?chemical catalystmicroorganismbiological catalystcatalyst
- 12. Multiple ChoiceWhat is the name for the mechanism of enzyme activity?Lock and keyjigsaw puzzlehammer and nailtwo hands pattern
- 13. Multiple ChoiceHow do enzymes work?Slow down chemical reactionsPrevent chemical reactions from workingincrease the activation energyspeed up the chemical reaction
- 14. Multiple ChoiceWhat is broken down by the enzyme Amylase?SugarStarchOilsMeat
- 15. Multiple ChoiceWhat is the optimum pH of pepsin (found in the stomach gastric juice of humans)5279
- 16. Multiple ChoiceBabies do not have well developed system to digest proteins, hence the baby food is prepared after treatement with which enzyme?proteaselipasecarbohydrasesynthase
- 17. Multiple ChoiceThe graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?Enzymes increase the energy of the reactants.Enzymes decrease the energy level of the products.Enzyme decrease the activation energy of the reaction.Enzymes reverse the direction of the reaction.
- 18. Multiple ChoiceWith what 3 letters do enzymes typically end?-ose-ase-ese-tic
- 19. Multiple ChoiceWhich of the following conclusions can be drawn from this graph?The optimum pH of the enzyme is 6.6.The optimum pH of the enzyme is 5.8The enzyme’s activity increases as pH increases 5.0 to 9.0The enzyme’s activity is greater around pH of 8.0 .
- 20. Multiple ChoiceIn the diagram, what is letter A?productsubstrateenzyme-substrate complexactive site
- 21. Multiple ChoiceWhich of these is most likely an enzyme?SucroseGalactoseFructoseAmylase
- 22. Multiple ChoiceWhich of these is NOT true?Enzymes can denature (change shape) when the temperature gets too high.Enzymes can only be used once in a chemical reaction.Extreme pH can denature enzymes.Enzymes speed up chemical reactions.
- 23. Multiple ChoiceThe current model of enzyme action is referred to as the...Induced Fit ModelLock & Key ModelSinger-Nicolson ModelDavson-Danielli Model
- 24. Multiple ChoiceEnzymes speed up reaction rates by changing...Activation EnergypHHydrogen BondsKinetic Energy
- 25. Multiple ChoiceLetter D...active siteenzymesubstrateproducts
- 26. Multiple ChoiceLetter B...active siteenzymesubstrateproducts
- 27. Multiple ChoiceLetter C...active siteenzymessubstrateproducts
- 28. Multiple ChoiceLetter E...active siteenzymesubstrateproducts
- 29. Multiple ChoiceWhat is structure A?SubstrateActive siteEnzymeProducts
- 30. Multiple ChoiceWhat is structure D?SubstrateActive siteEnzymeProducts
- 31. Multiple ChoiceWhat is structure C?SubstrateActive siteEnzymeProducts
- 32. Multiple ChoiceWhat is structure E, F, G?SubstrateActive siteEnzymeProducts
- Answer choicesTagsAnswer choicesTags