1. Chapter 6 Respiration

2. The third step in cellular respiration: building ATP in the electron transport chain.
Used to build ATP in quantity! The big payoff occurs. 2

3. Electrons Transport Chain
Oxygen Needed
Glycolysis
Krebs Cycle
Electrons Transport Chain

4. Glycolysis

6. Glycolysis is ALWAYS the initial step in the process by which organisms break down sugar to generate fuel for their activities. Two distinct phases: an “uphill” preparatory phase and a “downhill” payoff phase.
As Figure 4-29 (Glycolysis up close) illustrates, glycolysis is a sequence of chemical reactions (there are ten in all) through which glucose is broken down to yield two molecules of a substance called pyruvate. Glycolysis has two distinct phases: an “uphill” preparatory phase and a “downhill” payoff phase. 6

8. Krebs Cycle

10. Krebs Cycle

11. Electron Transport Chain

14. Follow the Electrons, as We Did in Photosynthesis
Start with the electrons carried by NADH and FADH2.
Over-the-counter NADH pills provide energy to sufferers of chronic fatigue syndrome. Why might this be?
Figure 4-33 The big energy payoff
This proton concentration gradient represents a significant source of potential energy! Oxygen is the electron acceptor at the end. 14

15. Each of these proteins uses some of the energy in the electron

16. Electron Transport Chain

17. Electron Transport Chain
TOTAL from 1 GLUCOSE
36 ATP
Glycolysis
2 ATP
Krebs Cycle
Electron Transport Chain
32 ATP

18. Summary of Cellular Respiration.
The 3 stages:
Glycolysis
Krebs cycle
Electron transport

19. Amoeba Sisters Cellular Respiration & the Mighty Mitochondria

20. NO OXYGEN NEEDED https://www.britannica.com/science/fermentation
Fermentation
NO OXYGEN NEEDED

21. Lactic Acid Fermentation
Alcohol Fermentation
Lactic Acid Fermentation