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IV. Comparison of Anaerobic and Aerobic Respiration

IV. Comparison of Anaerobic and Aerobic Respiration. AIM: How are anaerobic and aerobic respiration similar and different? DO NOW: Answer the 5 questions on today’s handout HOMEWORK: Re-do Cellular Respiration in the Wolf book. Pages 23-24; questions 9-22. A. Numbers of ATP.

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IV. Comparison of Anaerobic and Aerobic Respiration

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  1. IV. Comparison of Anaerobic and Aerobic Respiration AIM: How are anaerobic and aerobic respiration similar and different? DO NOW: Answer the 5 questions on today’s handout HOMEWORK: Re-do Cellular Respiration in the Wolf book. Pages 23-24; questions 9-22

  2. A. Numbers of ATP 1. Anaerobic Respiration a. Anaerobic respiration starts with _________ ATP, ends with _________ ATP, and has a net of _________ ATP. 2 4 2 2. aerobic Respiration a. The product of aerobic respiration has _________ ATP. 34

  3. i. Don’t forget! This phase come after anaerobic respiration! That means that we must add the product ( _______ ATP ) from the first phase! 4 4 ATP + 34 ATP = ______ ATP (anaerobic product) (aerobic product) (final product) 38 *Q: How many ATP are we left with at the end of the anaerobic phase? How about the aerobic phase? *Q: Which phase do you think is more efficient? Why?

  4. 3. Adding it all up a. Remember net value? We must ________________ the value we used to start the reaction from the final product! This starting value was _____ ATP. subtract 2 38 ATP - 2 ATP = ___________ ATP (total product) (energy used (net ATP) to initiate reaction) 34

  5. b. Let’s review! i. 2 ATP = _____________________________________ Energy used to initiate reaction ii. 4 ATP = _____________________________________ Total (gross) of the first (anaerobic) phase iii. 2 ATP = ____________________________________ Net ATP from the first (anaerobic) phase iv. 34 ATP = ____________________________________ Total (gross) of the second (aerobic) phase v. 38 ATP = ____________________________________ Total (gross) ATP from both phases vi. 36 ATP = ___________________________________ Net ATP from both phases *Q: NOW why do you think ATP is called “the currency of the cell”?

  6. B. Comparing the Processes less efficient more efficient 2 ATP 36 ATP 4 ATP 38 ATP Alcohol + CO2 + 4 ATP or Lactic acid + 4 ATP H2O + CO2 + 34 ATP cytoplasm mitochondria

  7. C. Final Information About Cellular Respiration • 1. It’s about gases! a. The main product is ATP. Cells do this process to make energy for the body. b. HOWEVER, the main purpose of cellular respiration is to exchange gases in the cell! c. Don’t forget – in alcohol fermentation, you are releasing ____________ and in aerobic respiration you are taking in ______________ and letting out ________________ gases! CO2 O2 CO2

  8. SUMMARY How are anaerobic and aerobic respiration similar and different? • A person will breathe deeply and rapidly for some time after a period of very strenuous exercise. The longer and more intense the exercise was, the longer the deep breathing will continue after the exercise stops. Using your understanding of cellular respiration, explain why strenuous exercise stimulates deep breathing that continues after the end of exercise. • If a person moved from San Diego, CA to Estes Park, CO (elevation 7500 ft.), what would be the effect on cellular respiration for this person? • What effect might smoking cigarettes have on cellular respiration?

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