Adapted from L. Miriello by S. Sharp
AP Biology
Name _________________________
Chapters 8 & 9 Guided Reading Assignment
Chapter 8
1. Contrast the catabolic and anabolic pathways.
2. Define the following terms: these terms and concepts are critical – they would be
“great” quiz words.
a. Energy
b. Kinetic energy
c. Heat/thermal energy
d. Chemical energy
e. Thermodynamics
f. First Law of Thermodynamics
g. Second Law of Thermodynamics
h. Free Energy
3. Contrast exergonic and endergonic reactions in terms of: free energy, stability,
capacity to do work.
Label the diagram below and indicate how cellular work is done by ATP.
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Adapted from L. Miriello by S. Sharp
4. Define phosphorylated.
5. In your own works, explained the concept of coupled reactions and ATP doing
work.
Chapter 9
6. Define the two catabolic pathways:
a. Fermentation
b. Cellular respiration
7. Use the following terms correctly in a sentence: redox reactions, oxidation,
reduction, reducing agent and oxidizing agent.
8. Why is being “reduced” equivalent to having a greater potential energy?
9. In cellular respiration, what is being oxidized and what is being reduced?
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10. Label the diagram below of the electron movement with regard to the coenzyme
NAD+.
11. Why are electron transport chains an advantage to living systems?
12. What are the three stages of aerobic cellular respiration?
13. What is substrate-level phosphorylation?
14. Complete the chart below re: glycolysis
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Adapted from L. Miriello by S. Sharp
15. Label the transition reaction converting pyruvate to acetyl coA below:
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Adapted from L. Miriello by S. Sharp
16. Label the citric acid cycle below:
c. Where does the C “go” that is removed?
d. What is happening when NAD+  NADH + H+?
e. Where is substrate level phosphorylation happening?
17. What is oxidative phosphorylation?
18. What are cytochromes?
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19. Define chemiosmosis and label the diagram below.
chemiosmosis:
20. Label the diagram below of the activities occurring on the ECT.
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Adapted from L. Miriello by S. Sharp
21. Complete the summary diagram of cellular respiration. You are responsible for
these #’s and locations!
22. Label the diagram of fermentation below:
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Adapted from L. Miriello by S. Sharp
23. Does aerobic cellular respiration happen in prokaryotic organisms – if yes –
where?
24. What is the overall purpose of fermentation? Why does it have to occur?
25. What is a facultative anaerobe?
26. What is the evolutionary significance of glycolysis?
27. Why do fats provide a little more than twice as many calories per gram as
compared to carbohydrates or proteins? Hint: Think of the output of the Citric Acid
Cycle.
28. Why would AMP stimulate cellular respiration and ATP inhibit it?
29. Why would phosphofructokinase being allosteric in character be an advantage to
the control of cellular respiration?
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