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- 1. Multiple ChoiceWhat is a substance called if it speeds up a chemical reaction?reusablecatalystspecificfragile
- 2. Multiple ChoiceEach enzyme only has 1 substrate that will fit its active site. What is this called?reusablilitydenaturationspecificityfragility
- 3. Multiple ChoiceWith what 3 letters do enzymes typically end?-ose-ase-ese-tic
- 4. Multiple Choice
The 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. - 5. 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 .
- 6. Multiple ChoiceAny substance that is acted upon by an enzyme is called a(n)?CoenzymeSubstrateVitaminPolypeptide
- 7. Multiple ChoiceIn the diagram, what is letter A?productsubstrateenzyme-substrate complexactive site
- 8. Multiple ChoiceEnzymes are...nucleic acidsproteinslipidscarbohydrates
- 9. Multiple ChoiceAn enzyme speeds up a chemical reaction in the cell but can only be used once. True or False?truefalse
- 10. 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
- 11. Multiple ChoiceWhat happens when enzymes are heated to a high temperature?The enzymes die.The shapes of the enzyme are altered denatureThe enzymes' amino acid sequence changes.The enzymes remain the same
- 12. Multiple ChoiceWhich of these is most likely an enzyme?SucroseGalactoseFructoseAmylase
- 13. Multiple ChoiceEnzymes speed up reaction rates by changing...Activation EnergypHHydrogen BondsKinetic Energy
- 14. Multiple ChoiceLetter D...active siteenzymesubstrateproducts
- 15. Multiple ChoiceLetter B...active siteenzymesubstrateproducts
- 16. Multiple ChoiceLetter C...active siteenzymessubstrateproducts
- 17. Multiple ChoiceLetter E...active siteenzymesubstrateproducts
- 18. Multiple ChoiceWhich enzyme is most efficient in a basic solution?AB
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