1. Cellular Respiration
Chapter 7

2. Harvesting Energy Autotrophs vs Heterotrophs
Cellular Respiration- the oxidation of organic compounds to extract energy from chemical bonds

3. Getting Energy from Food
Digestion
Breaking bonds
Redox reactions
Dehydrogenations

4. Electron Transport Happens in stages…why important?
Aerobic vs anaerobic respiration
Electron Carriers

5. 2 Steps in the oxidation of glucose
Substrate Level Phosphorylation
Oxidative Phosphorylation

6. Overview of Aerobic Respiration

7. Stages of Cellular Respiration
Glycolysis
Pyruvate Oxidation
Krebs Cycle
ETC and Chemiosmosis

8. Products Of Glycolysis
Glucose + 2 ADP + 2 P + 2 NAD pyruvate + 2 ADP + 2 NADH + 2 H+ + 2 H2O

9. Recycling NADH
Aerobic Respiration
Fermentation

10. The Fate of Pyruvate

11. Oxidation of Pyruvate to Produce Acetyl-CoA
Pyruvate+ NAD+ + CoA
acetyl-CoA + NADH + CO2 + H+

12. Krebs Cycle

13. ETC- Creates and Electron Gradient

14. ATP SYNTHASE

15. ETC and Chemiosmosis

16. Energy Yield

17. Actual vs Theoretical
30 vs 36…why?

18. Regulation of Aerobic Respiration
Feedback Inhibition
Figure 7.17

19. Oxidation without Oxygen
Methanogens use CO2
Sulfur bacteria use Sulfate
Fermentation
Alcoholic
Lactic acid

20. Alcoholic Fermentation

21. Lactic Acid Fermentation

22. Catabolism of Proteins and Fats
Proteins to Amino groups
Fatty acids to acetyl groups
Intermediates of cellular respiration
Figure 7.20

23. Evolution of Metabolism
1. Degrading Carbon Based Molecules
2. Glycolysis
3. Anaerobic Photosynthesis
4. Aerobic Photosynthesis
5. Nitrogen Fixation
6 Aerobic Respiration