1. Interest Grabber Feel the Burn
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, slow run? 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 changes in how you feel?
3. Think about running as fast as you can for 100 meters. Could you keep up this pace for a much longer distance? Explain your answer.

2. Section Outline 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 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. Fermentation (without oxygen)
Chemical Pathways
Section 9-1
Glucose
Krebs cycle
Electron transport
Glycolysis
Alcohol or lactic acid
Fermentation (without oxygen)

6. Electron Transport Chain
Flowchart
Section 9-2
Cellular Respiration
Glucose (C6H1206) +
Oxygen (02)
Glycolysis
Krebs Cycle
Electron Transport Chain
Carbon
Dioxide
(CO2) +
Water
(H2O)

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

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

9. To the electron transport chain
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. Click a hyperlink to choose a video. Aerobic Respiration Glycolysis
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
Video Contents

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

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

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

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

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

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

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

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End of Custom Shows