AP Biology Cellular Respiration Review Sheet
Use your notes, diagrams, review packets, and the graphic organizer we made.
1. Give 3 reasons and explain why glycolysis is believed to be an ancient metabolic process.
2. Write the equation for cellular respiration. Is the reaction exergonic or endergonic? Why?
3. Write out the steps to glycolysis. How many ATP are created? What is the purpose of
glycolysis? Where does it occur? What are the products?
4. Write out the Krebs Cycle. What is its purpose? What products are produced? How many
ATP? Where does it occur?
5. Write out the steps to the ETC. What are its products? Where does it occur?
6. What is chemiosmosis? What does it product? Where does it occur? What does it pump?
7. Explain a proton motive force or gradient. What is its purpose?
8. How are the protons (H+) from #7 produced? Where?
9. Explain the 2 types of fermentation. What are their reactants and their products? Where do
they occur?
10. Does fermentation produce ATP? Why or why not?
11. Compare substrate phosphorylation to oxidative phosphorylation. Where do they occur?
12. What are the electron carriers and what do they do specifically?
13. What 2 carbon molecule enters the Krebs cycle?
14. Which major organelle in the body is responsible for detoxifying excessive amounts of
lactate?
15. How many ATP molecules are created in glycolysis, the Krebs cycle, and in the ETC? Total?
16. What is the purpose of oxidative phosphorylation?
17. How many moles of CO2 are released in the citric acid cycle?
18. What three factors affect the rate of cellular respiration?
19. Write the chemical equation for photosynthesis.
20. Explain the relationship between photosynthesis and cellular respiration.
21. What is the function of oxygen in cellular respiration?
22. What is the relationship between oxygen consumption and metabolism?
23. What molecule is an oxidizing agent after it loses a hydrogen atom as a result of an
oxidation- reduction reaction?
24. How many total molecules of ATP are produced during glycolysis? How many are used?
25. Electron transport chain proteins are located in the __________________________________
26. Electrons equal _________________. Which two macromolecules are considered high
energy foods?
27. Which molecule donates electrons to the ETC at the lowest energy level?
28. Name two processes that occur in the cytosol and one that occurs in the mitochondria.
29. Study all diagrams.