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Interest Grabber

Interest Grabber. Section 9-1. Feel the Burn Do you like to run, bike, or swim? These all are good ways to exercise. When you exercise, your body uses oxygen to get energy from glucose, a six-carbon sugar.

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Interest Grabber

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  1. Interest Grabber Section 9-1 • Feel the Burn • Do you like to run, bike, or swim? These all are good ways to exercise. When you exercise, your body uses oxygen to get energy from glucose,a six-carbon sugar. 1. How does your body feel at the start of exercise, such as a long, slowrun? How do you feel 1 minute into the run; 10 minutes into the run? 2. What do you think is happening in your cells to cause the changesin how you feel? 3. Think about running as fast as you can for 100 meters. Could youkeep up this pace for a much longer distance? Explain your answer.

  2. Section Outline Section 9-1 • 9–1 Chemical Pathways A. Chemical Energy and Food B. Overview of Cellular Respiration C. Glycolysis 1. ATP Production 2. NADH Production D. Fermentation 1. Alcoholic Fermentation 2. Lactic Acid Fermentation

  3. Section Outline Section 9-2 • 9–2 The Krebs Cycle and Electron Transport A. The Krebs Cycle B. Electron Transport C. The Totals D. Energy and Exercise 1. Quick Energy 2. Long-Term Energy E. Comparing Photosynthesis and Cellular Respiration

  4. Figure 9–2 Cellular Respiration: An Overview Section 9-1 Mitochondrion Electrons carried in NADH Electrons carried in NADH and FADH2 Pyruvic acid Glucose Electron Transport Chain Krebs Cycle Glycolysis Mitochondrion Cytoplasm

  5. Chemical Pathways Section 9-1 Glucose Krebs cycle Electrontransport Glycolysis Alcohol or lactic acid Fermentation (without oxygen)

  6. Flowchart Section 9-2 Cellular Respiration Glucose(C6H1206) + Oxygen(02) Glycolysis KrebsCycle ElectronTransportChain Carbon Dioxide (CO2) + Water (H2O)

  7. Figure 9–3 Glycolysis Section 9-1 Glucose 2 Pyruvic acid To the electron transport chain

  8. Figure 9–3 Glycolysis Section 9-1 Glucose 2 Pyruvic acid To the electron transport chain

  9. Figure 9–3 Glycolysis Section 9-1 Glucose 2 Pyruvic acid To the electron transport chain

  10. Figure 9–6 The Krebs Cycle Section 9-2 Citric Acid Production Mitochondrion

  11. Figure 9–6 The Krebs Cycle Section 9-2 Citric Acid Production Mitochondrion

  12. Figure 9–7 Electron Transport Chain Section 9-2 Electron Transport Hydrogen Ion Movement Channel Mitochondrion Intermembrane Space ATP synthase Inner Membrane Matrix ATP Production

  13. WHAT IF THERE ISN’T ANY OXYGEN? • CELLUAR RESPIRATION: Anaerobic (fermentation) • *yeast cells = alcohol production • *muscle cells = lactic acid production

  14. Figure 9–4 Lactic Acid Fermentation Section 9-1 Lactic acid Glucose Pyruvic acid

  15. Figure 9–4 Lactic Acid Fermentation Section 9-1 Lactic acid Glucose Pyruvic acid

  16. Figure 9–4 Lactic Acid Fermentation Section 9-1 Lactic acid Glucose Pyruvic acid

  17. Pros and Cons of Lactic Acid Fermentation • Pros – your muscle will keep working even without sufficient oxygen

  18. Cons – you feel it, lactic acid causes sore muscles and cramping • Your body will get rid of lactic acid – it diffuses into blood and goes to liver where it is converted back to pyruvic acid – ready for O2 LIVER

  19. VIDEO LINKS • FROM FOOD TO ATP • Cellular Respiration Overview

  20. Video Contents Video Contents • Click a hyperlink to choose a video. • Aerobic Respiration • Glycolysis • Krebs Cycle, Part 1 • Krebs Cycle, Part 2 • Electron Transport Chain, Part 1 • Electron Transport Chain, Part 2

  21. Video 1 Video 1 • Click the image to play the video segment. Aerobic Respiration

  22. Video 2 Video 2 • Click the image to play the video segment. Glycolysis

  23. Video 3 Video 3 • Click the image to play the video segment. Krebs Cycle, Part 1

  24. Video 4 Video 4 • Click the image to play the video segment. Krebs Cycle, Part 2

  25. Video 5 Video 5 • Click the image to play the video segment. Electron Transport Chain, Part 1

  26. Video 6 Video 6 • Click the image to play the video segment. Electron Transport Chain, Part 2

  27. Internet Go Online • Links from the authors on Creatine • Share kimchi lab data • Interactive test • For links on cellular respiration, go to www.SciLinks.org and enter the Web Code as follows: cbn-3091. • For links on the Krebs cycle, go to www.SciLinks.org and enter the Web Code as follows: cbn-3092.

  28. End of Custom Shows • This slide is intentionally blank.

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