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AP Biology
Chapter 9 Guided Reading Assignment
Name _________________________
Only true BioNinjas walk this chapter. Arm thyself and prepare for battle!
1. Define the two catabolic pathways:
a. Fermentation
b. Cellular respiration
2. Use the following terms correctly in a sentence: redox reactions, oxidation, reduction, reducing
agent and oxidizing agent. Memory Tip (LEO says GER:Loss of Electrons is Oxidation; Gain of
Electrons is Reduction)
3. Why is being “reduced” equivalent to having a greater potential energy?
4. In cellular respiration, what is being oxidized and what is being reduced? HINT: In organic
chemistry the electrons in redox reactions are usually between C and H so if a carbon
compound has H in it, it is reduced and has potential energy.
5. Label the diagram below of the electron movement with regard to the coenzyme NAD+.
6. Why are electron transport chains an advantage to living systems?
7. What are the three stages of aerobic cellular respiration?
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8. What is substrate-level
phosphorylation?
9. Label the transition reaction
converting pyruvate to acetyl
coA:
10. Use the diagram of the citric
acid cycle to answer the
following questions:
a. Where does the C “go” that is removed?
b. What is happening when NAD+  NADH + H+?
c. Where is substrate level phosphorylation happening?
11. What is oxidative phosphorylation?
12. Define chemiosmosis and label the diagram:
13. Label the diagram of the activities occurring on the ETC:
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14. Complete the
summary diagram of
cellular respiration.
You should be able to
diagram this for the
FRQs.
15. Label the diagram of fermentation:
16. Does aerobic cellular respiration happen in prokaryotic
organisms – if yes – where?
17. What is the purpose of fermentation?
18. What is a facultative anaerobe?
19. What is the evolutionary significance of glycolysis?
20. 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.
21. Why would AMP stimulate cellular respiration and ATP inhibit it? (Hint: feedback inhibition)
Video Review
Crash Course: (you can also do a video search for “Crash Course Respiration”)
http://www.youtube.com/watch?v=00jbG_cfGuQ
1. What is the overall equation for cellular respiration?
2. What is the currency for biological energy?
3. What do you need to know about the three phosphate groups of ATP?
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4. What are the three steps of cellular respiration?
5. What are the final products of Glycolysis? How much energy was required to make this?
6. What is fermentation? When is fermentation done?
7. What are the anaerobic processes of respiration? What are the aerobic processes? What is
the difference between the two?
8. What are all the products of the Krebs Cycle?
9. Why is the Electron Transport Chain the money-maker?
10. How many ATPs do we get from each NADH? How many ATPs do we get from each FADH 2?
Bozeman Science: (you can also do a video search for “Bozeman Cellular Respiration”)
http://www.youtube.com/watch?v=Gh2P5CmCC0M
1. What is the difference between aerobic and anaerobic respiration?
2. What types of organisms do cellular respiration?
3. What are the important parts of the mitochondria?
4. Where in the cell does Glycolysis happen?
5. How do pyruvates get into the mitochondria?
6. Why are NADH and FADH2 important parts of cellular respiration?
7. What ions are pumped into the intermembrane space of the mitochondria at the beginning of
the ETC?
8. How do H+’s get back into the matrix of the mitochondria? Why is this such an important part
of cellular respiration?
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