Chapter 8A Homework Questions

1. Explain the paradox in the bumper sticker “Fight Entropy”?

2. How does the second law of thermodynamics help explain earth’s relatively mild temperature compared to Venus or Mars (or the Moon)?

3. What is the relationship between energy and work?

4. Describe the difference between potential energy and kinetic energy?

5. What is the difference between catabolism and anabolism?

6. Describe diffusion in terms of entropy.

7. What is free energy?

8. What is the difference between an endergonic and an exergonic reaction?

9. The free energy associated with the combustion of glucose is -218 kcal/mol. The free energy associated with the hydrolysis of ATP is -7.3 kcal/mol. How many mol ATP is it theoretically possible to produce from one mol glucose?

10. Name three reactions that might require ATP?

11. What other role does ATP play in the cell?