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- 1. Multiple ChoiceWhat is a substance called if it speeds up a chemical reaction?reusablecatalystspecificfragile
- 2. Multiple Choice
In the diagram, what is letter A?productsubstrateenzyme-substrate complexactive site - 3. Multiple ChoiceEnzymes are...nucleic acidsproteinslipidscarbohydrates
- 4. Multiple ChoiceWhat is the function of an enzyme?enzymes break themselves into small piecesenzymes slow down chemical reactionsenzymes speed up chemical reactionsenzymes combine products to form reactants
- 5. Multiple ChoiceWith what 3 letters do enzymes typically end?-ose-ase-ese-tic
- 6. Multiple ChoiceWhere do substrates bind on an enzyme?voltage-gated channelssurface receptorcalcium channelsactive site
- 7. Multiple ChoiceThe "lock and key hypothesis" attempts to explain the mechanism of?Vacuole formationPinocytosisSharing of electronsEnzyme specificity
- 8. Multiple ChoiceWhich substrate would this enzyme catalyze?Δσ∅μ
- 9. Multiple ChoiceWhat makes an enzyme substrate specific?SizeShapeNameLocation it is found in
- 10. 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 work better
- 11. Multiple ChoiceHow do enzymes increase the speed of chemical reactions?reducing the number of productsreducing the activation energyincreasing the temperature of the cellincreasing the concentration of reactants
- 12. Multiple ChoiceAfter the enzyme and substrate bind together and perform the reaction, what does the substrate become?a substratean enzymea productan active site
- 13. Multiple Choicecan a change in pH alter the active site of an enzymeyesno
- 14. 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.
- 15. Multiple ChoiceWhat happens when enzymes are heated to a high temperature?The enzymes die.The shapes of the enzyme are altered or denaturedThe enzymes' amino acid sequence changes.The enzymes remain the same
- 16. Multiple ChoiceVenus flytraps produce chemicals that break down insects into usable compounds. These chemicals are most likely:HormonesLipidsEnzymesCarbohydrates
- 17. Multiple ChoiceWhich chemical is classified as an enzyme?GalactoseLipidProteaseManganese dioxide
- 18. Multiple ChoiceWhat is indicated by letter A?enzymeproductsubstrateactive site
- 19. Multiple ChoiceHow do competitive inhibitors affect enzymes?It binds to the active site, blocking the substrateIt changes the shape of the enzymeIt increases the activation energyIt decreases the activation energy
- 20. Multiple ChoiceWhich of these do NOT affect enzyme activity?TemperaturepHCompetitive InhibitorsCarbohydrates
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