ap lectureguide06


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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