| AP Biology: Chapter 6 |
METABOLISM & ENZYMES
1. Define the following terms:
a. Catabolic pathway ________________________________________________________
b. Anabolic pathway _________________________________________________________
c. Kinetic energy ____________________________________________________________
d. Potential energy __________________________________________________________
2. The First Law of Thermodynamics is the principle of… _______________________________
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3. The Second Law of Thermodynamics involves changes in… __________________________
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4. What is meant by a change in free energy? ________________________________________
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5. Compare reactions that are…
a. Exergonic _______________________________________________________________
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b. Endergonic ______________________________________________________________
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6. Sketch the ATP cycle:
7. How does ATP “couple reactions”? ______________________________________________
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8. Sketch the profile of an exergonic reaction.
9. How do enzymes affect the energy profile? ________________________________________
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10. Define activation energy. ______________________________________________________
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11. Why are enzymes said to be specific? ____________________________________________
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12. List factors that influence the rate of enzyme reactions. ______________________________
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13. Label the diagram of the catalytic enzyme cycle.
14. How do competitive and noncompetitive inhibitors differ in their enzyme interactions?
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15. What happens during allosteric regulation? ________________________________________
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16. Describe feedback inhibition. ___________________________________________________
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17. Define enzyme cooperativity. ___________________________________________________
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