Ch 9 Cellular Respiration: Harvesting Chemical Energy

Review Questions
1. Starting with glucose (C6H12O6), write the overall reactions for aerobic respiration.
2. How is aerobic cellular respiration the opposite of photosynthesis?
3. Name the five stages of cellular respiration.
4. Where in the cell does glycolysis take place?
5. How much ATP is required to split a glucose molecule in half?
6. What is the net gain in ATP at the end of glycolysis?
7. What is the difference between fermentation and aerobic cellular respiration?
8. Which produces more ATP per glucose molecule, fermentation or aerobic cellular respiration?
9. Identify the products for each of the stages of cellular respiration.
10. During which stage of cellular respiration is carbon dioxide first formed?
11. Why do your muscles ache after vigorous exercise?
12. How does fermentation produce lactic acid?
13. How do yeast cells produce alcohol?
14. Name two events during the transition reaction.
15. Where inside the cell does the transition occur?
16. What roles do NAD+ and FAD+ play in cellular respiration?
17. How much ATP and carbon dioxide are produced during the Krebs cycle?
18. Where inside the cell does the Krebs cycle occur?
19. What is the location of the electron transport chain?
20. What happens in the electron transport chain?
21. Why is oxygen needed for cellular respiration?
22. What happens in chemiosmosis?
23. How many ATP molecules are produced in chemiosmosis?
24. How many ATP molecules are produced from all five stages of cellular respiration?
25. How are fats and proteins metabolized?  What happens to the excess of nitrogenous refuse from the digestion of proteins and amino acids?
26. For each glucose molecule processed in cells, what are the net molecular products of glycolysis?
27. A glucose fed yeast cell is removed from an aerobic environment to an anaerobic one.  If the cell continues to generate ATP at the same rate, how will the rate of glucose consumption compare to the consumption in the aerobic environment?

KEY TERMS

Aerobic
Anaerobic
Cellular respiration
Chemiosmosis
Citric acid cycle
Electron transport chain
Fermentation
Glycolysis
NAD
Oxidation
Oxidative phosphorylation
Reduction
Substrate level phosphorylation

Concept check 9.3 p 170
Concept check 9.4 p 174
Concept check 9.5 p 176
Concept check 9.6 p 178

Questions 3, 5, 8, 9, and 10 Page 180