1. Metabolism

3. Cell Structure

4. Energy for Living

5. ATP and Energy

7. ATP and Muscles ATP +HOH --> ADP + P + Energy Relaxed muscle + energy --> contracted muscle

8. NAD+

9. ATP and Muscles

10. Oxidation of Ethanol with NAD+

11. FAD

13. Electron Transport

16. FMN similar to FAD

17. Electron Transport

19. Cytochrome

20. Electron Transport

21. ATP Synthesis 1.Electrons are transferred from NADH, through a series of electron carriers, to O2. 2.Transfer of electrons bycarriers generates a (H+) gradient across the inner mitochondrial membrane. 3. H+ diffuses back across the inner mitochondrial membrane, ATP is synthesized.

22. How does ATP synthase work?

23. Works like a rotar. Every time three protons are pumped through the channel, the F1 subunit rotates 120 degrees.

24. What happens at the end of electron transport? The overall electron chain transport reaction is: 2 H + + 2 e- + 1/2 O 2 ---> H 2 O + energy Notice that 2 hydrogen ions, 2 electrons, and an oxygen molecule react to form as a product, water with energy released in an exothermic reaction.