1. Unit 2 Lecture 10: Cellular respiration This video provides the content for your “Basics” class notes. It moves quickly, so pause it often while you write. Bring your notes to class.

2. Electron Energy

3. Respiration overview

4. The mitochondrion

5. Respiration overview

6. Glycolysis 1.Occurs in cytosol 2. Glucose has some electrons removed 3.Electrons are placed on NAD+ to make NADH 4.Some ATP is made by substrate level phosphorylation 5.End product is pyruvate

7. NAD+ as an electron shuttle NAD+ NADH Oxidized Reduced

8. Substrate level phosphorylation

9. Sample reactions in glycolysis

10. Glycolysis Fermentation

12. Glycolysis Fermentation

13. Citric acid cycle 1.Occurs in matrix 2.3-carbon sugar is oxidized to CO 2 3.Electrons are placed on NAD+ and FAD 4.Some ATP is made by substrate level phosphorylation

14. Other Fuels 1.Only carbohydrates go through glycolysis. 2.Fats and proteins enter cellular respiration at the end of glycolysis or the citric acid cycle.

15. Oxidative phosphorylation

16. Intermembrane space Matrix Electron Transport chain

17. Oxidative phosphorylation

19. Chemiosmosis

20. Substrate-level Phosphorylation vs Chemiosmosis

21. Relative ATP Production

22. Prep for Basics Quiz Can you do the following? Draw and label a mitochondrion Describe location and products of glycolysis, citric acid cycle, and electron transport chain Describe the function of electron shuttles and electron transport Compare substrate level phosphorylation and chemiosmosis Explain where the majority of ATP is produced in respiration Describe the basics of fermentation and when it is used