7.5 & 7.6: Fermentation & Anaerobic Respiration Enable Cells to Produce ATP Without the Use of Oxygen
Key Terms: Alcohol Fermentation, Lactic Acid Fermentation, Obligate Anaerobes, Facultative Anaerobes, Beta Oxidation
BELLWORK: Watch and take your own notes on the Alcohol Fermentation Khan Academy video, and the Lactic Acid Fermentation Khan Academy video.
IN CLASS READING of Concept 7.5 and 7.6: Pages 154-158 in your text.
From page 154
1. List the 2 mechanisms by which certain cells can oxidize organic fuel and generate ATP without the use of oxygen.
2. State the distinction between those 2 ways.
From page 155
3. Describe an example of an organism that uses SO₄²⁻ as the final electron acceptor instead of oxygen.
4. Hypothesize why ground water used to water lawns here in Bradenton smells like rotten eggs.
5. State the oxidizing agent of glycolysis.
6. Explain how fermentation keeps ATP production going.
From page 156
7. Describe how alcohol fermentation keeps glycolysis going.
8. Name 2 organisms that can carry out alcohol fermentation.
9. Evaluate the purpose of putting freshly made bread dough somewhere warm for a few hours.
10. Describe how lactic acid fermentation keeps glycolysis going.
11. List 2 foods made from lactic acid fermentation.
12. Research how your favorite type of cheese is made.
13. Explain when human muscle cells use lactic acid fermentation.
14. State the likely reason for muscle soreness after a strenuous workout.
15. Compare and Contrast fermentation with anaerobic and aerobic respiration.
From page 157
16. Determine what yields more ATP (aerobic respiration or fermentation). State how much more.
17. Summarize the evolutionary significance of glycolysis.
18. Predict what would happen to its rate of glucose consumption if a glucose-fed yeast cell were moved from an aerobic environment to an anaerobic one. Assume that ATP production has to stay the same.
From page 158
19. Summarize how glycolysis can accept a wide range of carbohydrates for catabolism.
20. Explain what must first happen to proteins before they can be used as fuel.
21. Explain what must happen to amino acids before they can feed into glycolysis or the citric acid cycle.
22. State where most of the energy of a fat is stored.
23. Explain why fats make excellent fuels.
24. Compare the ATP production from the oxidation of a gram of fat to that of a gram of carbohydrate.
25. Describe an example of biosynthesis.
26. Decide whether these anabolic, or biosynthetic, pathways consume or generate ATP.
2. State the distinction between those 2 ways.
From page 155
3. Describe an example of an organism that uses SO₄²⁻ as the final electron acceptor instead of oxygen.
4. Hypothesize why ground water used to water lawns here in Bradenton smells like rotten eggs.
5. State the oxidizing agent of glycolysis.
6. Explain how fermentation keeps ATP production going.
From page 156
7. Describe how alcohol fermentation keeps glycolysis going.
8. Name 2 organisms that can carry out alcohol fermentation.
9. Evaluate the purpose of putting freshly made bread dough somewhere warm for a few hours.
10. Describe how lactic acid fermentation keeps glycolysis going.
11. List 2 foods made from lactic acid fermentation.
12. Research how your favorite type of cheese is made.
13. Explain when human muscle cells use lactic acid fermentation.
14. State the likely reason for muscle soreness after a strenuous workout.
15. Compare and Contrast fermentation with anaerobic and aerobic respiration.
From page 157
16. Determine what yields more ATP (aerobic respiration or fermentation). State how much more.
17. Summarize the evolutionary significance of glycolysis.
18. Predict what would happen to its rate of glucose consumption if a glucose-fed yeast cell were moved from an aerobic environment to an anaerobic one. Assume that ATP production has to stay the same.
From page 158
19. Summarize how glycolysis can accept a wide range of carbohydrates for catabolism.
20. Explain what must first happen to proteins before they can be used as fuel.
21. Explain what must happen to amino acids before they can feed into glycolysis or the citric acid cycle.
22. State where most of the energy of a fat is stored.
23. Explain why fats make excellent fuels.
24. Compare the ATP production from the oxidation of a gram of fat to that of a gram of carbohydrate.
25. Describe an example of biosynthesis.
26. Decide whether these anabolic, or biosynthetic, pathways consume or generate ATP.
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