1. Catabolism – Electron Transport

3. Catabolism -- Overview

4. Catabolism -- Glycolysis

5. 4 ADP + P i Catabolism -- Glycolysis Glucose (6C) 2 pyruvate (3C) 2 ATP 2 ADP + P i 4 ATP 2 NAD 2 NADH

6. Catabolism -- Glycolysis

8. Catabolism -- Overview

9. Catabolism -- Decision O 2 present O 2 absent Intermediate Reaction Kreb’s cycle Electron transport & Oxidative phosphorylation Fermentation

10. Catabolism -- Fermentation Does not require oxygen Recycles NADH to NAD Allows glycolysis to occur Many types Humans Lactic acid fermentation Yeast Ethanolic fermentation

11. Catabolism -- Fermentation

14. Catabolism -- Decision O 2 present O 2 absent Intermediate Reaction Kreb’s cycle Electron transport & Oxidative phosphorylation Fermentation

15. Catabolism – Kreb’s Cycle

18. Catabolism – Electron Transport

23. Catabolism -- Overview