1. How your cell get’s energy from the food you eat
Cellular Respiration
How your cell get’s energy from the food you eat

2. Why do we need energy?

3. Cellular Respiration

4. Where does cellular respiration occur in the cell

5. Adenosine triphosphate (ATP)
Charged battery = ATP
Uncharged battery = ADP

6. Where is the third phosphate group?
Charged battery = ATP
Uncharged battery = ADP

7. Cellular Respiration

8. Site of Cellular Respiration

9. Equation for Cellular Respiration
Once again, Hank…

10. Phases of Cellular Respiration

11. Glycolysis- occurs with or without oxygen
6 carbon glucose breaks into Carbon Pyruvate Molecules
Investment:
- 2 ATP
Produces:
2 Pyruvate molecules
2 Water molecules
4 ATP (Net of 2)
2 NADH + 2H+

12. or
6 carbon chain becomes 2 – 3 carbon chains
2 ATP net profit

13. Kreb’s Cycle- oxygen needed
Pyruvate (3C) acetyl CoA (2C) before this cycle
2C molecule combines with another molecule to form a 6C molecule
Carbon dioxide, NADH, FADH2 (electron carriers) is produced
GTP

14. Taking it to the next level
Don’t worry about knowing why everything happened in the cycle, but it is complex chemistry

15. Or… Purpose of Kreb’s cycle
Shave off Carbon dioxide from the carbon chain
Harvest hydrogens for the next stage off of the sugar molecule
NADH
FADH2

17. All of the harvested hydrogens go to electron transport chain
What are the two hydrogen carriers?

18. Electron Transport Chain
Uses high energy electrons from glycolysis and Kreb’s cycle convert ADP into ATP
NADH and FADH2 pass high energy electrons to the electron transport chain

19. Steps of the ETC
Electrons from NADH and FADH2 are carried by the electron transport chain and a hydrogen is passed through into the intermembrane space
Energy is generated by ETC will move H+ ions across the inner mitochondrial membrane to the intermembrane space
At the end to ETC, an enzyme combines electron with Hydrogen ions and oxygen to form water
Oxygen is the final electron acceptor
Hydrogen ions are built up in the intermembrane space, making it more positively charged than the matrix
ATP Synthase is within the inner mitochondrial membrane, as =each hydrogen ion goes through ATP Synthase, and enzyme will allow ADP to attach to a Phosphate to produce ATP
Will Produce approximately 32 ATP

20. Or ETC is…. Bonding hydrogen with Oxygen to make Water NADH  3 ATP
FADH2  2 ATP
Makes most of the ATP in Cellular Respiration

21. http://highered. mcgraw- hill
hill.com/sites/ /student_view0/ chapter25/animation__electron_transport_ system_and_atp_synthesis__quiz_1_.html

22. Questions for understanding
Where does the oxygen go that we inhale?
What happens to it?

23. Where does the carbon dioxide we inhale come from?

24. They hydrogen in the Electron Transport Chain, where are they from?

25. Fermentation- Anaerobic (without the presence of oxygen)

26. Energy Totals- per every glucose molecule
Phase
ATP
Carbon Dioxide
Electron Carriers
Glycolysis
4 total, 2 Net
Kreb’s Cycle
2 Net 6
8 NADH, 2 FADH2
Electron Transport Chain
32 Net
Anaerobic Respiration- Fermentation

28. Fermentation