1. Cellular Respiration Chapter 5 Section 3

2. Energy from the food we eat is stored in carbohydrates, fats, and proteins. Before you use the energy it must be transferred to ATP. C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + ATP

3. ATP

4. An overview of cellular respiration (Layer 1)

5. Glycolysis Occurs in cytoplasm Does Not Require O 2 NAD +

6. Where does Pyruvate go? If O 2 is present (aerobic) mitochondria If O 2 is NOT present (anaerobic) fermentation

8. Krebs Cycle Happens in mitochondria Series of reactions that make: CO 2 ATP Electron carriers NADH FADH 2

9. Electron Carriers….carry electrons to….

11. Electron Transport Chain (ETC) 2. O 2 receives electron & combines with H + to make H 2 0 1. Electrons “jump” between molecules & loose energy as they move This provides the energy to make Lots of ATP!!!!!!!!

12. Anaerobic Fermentation Fermentation allows cells to live off glycolysis alone

13. Alcoholic Fermentation Pyruvate + NADH Ethanol + CO 2 + NAD +

14. Lactic Acid Fermentation Pyruvate + NADH Lactic Acid + NAD +