UNIT 5 STUDY GUIDE
___/10 Points
Directions: Complete this study guide on separate piece(s) of paper to prepare for the Unit 5 Test. Use your notes,
assignments, and laboratory investigations to answer the questions below. Write in full sentences. Turn this study
guide in during Notebook Check #5. If thoroughly completed, you will receive up to additional two extra credit
points!
1. Explain the relationship between photosynthesis and cell respiration. Briefly explain why plants store
energy in glucose molecules, yet use ATP to drive metabolic reactions inside their cells.
2. What are the three major steps in cellular respiration? Where do these steps occur?
3. What are the products and reactants of glycolysis, the Krebs cycle, and the electron transport chain?
4. Account for the 36 ATP produced during cell respiration.
5. Why is it important for oxygen to reach the electron transport chain? What does it accept there? What if
oxygen was not present? Would ATP be produced?
6. What does ATP stand for? What does ATP look like? What is the structure of the molecule? Where is energy
stored? Why do cells produce ATP from glucose?
7. What does the electron transport chain pump? Where does this energy for pumping come from?
8. Why can’t hydrogen ions simply diffuse through the inner mitochondrial membrane? Why must the move
through ATP synthase? What does ATP synthase do?
9. What is the role of NAD+/NADH? Which one is oxidized? Which is reduced? Which is energized?
10. What is the role of FAD/FADH2? Which one is oxidized? Which is reduced? Which is energized?
11. What does glucose look like? What is the structure of glucose? Where is energy stored?
12. What is another name for the Krebs cycle? Where does this name come from?
13. How many turns of the Krebs cycle are required to fully oxidize one molecule of glucose?
14. Identify the products of the Krebs cycle. Where do the products of the Krebs cycle go?
15. What is acytl-CoA? How many carbons are in acetic acid? It joins a 4 – carbon compound creating citric acid,
a ________ carbon compound.
16. How many ATP are required to start glycolysis? How many ATP are produced? What is the net gain in ATP?
17. What would happen to glycolysis if NADH continued to build up and had no where to be oxidized back into
NAD+?
18. How many ATP does fermentation produce? How does this compare to glycolysis?
19. What are the two types of fermentation? Which organisms do lactic acid fermentation, alcoholic
fermentation? What are the products of each type of fermentation?
20. What advantages does fermentation have over cellular respiration? What are two disadvantages that
fermentation has when compared to cell respiration?
21. Review your explanations of how whales are able to dive for long periods without breathing. Review your
cell respiration labs.
22. Define heart attack. Apply your knowledge of cellular respiration to explaining what occurs during a heart
attack.
23. Which of the following do cellular respiration: plants, animals, fungi, protists, bacteria?