1. Cellular Respiration

2. Glucose Oxygen Carbon Dioxide Water Energy
Enzymes 36
C6H12O6 +6 O CO2 + 6H2O + ATP
Glucose Oxygen Carbon Dioxide Water Energy

3. Energy from electrons (C-H bonds) Needs to be converted to a usable
Metabolism
Energy from electrons (C-H bonds)
Needs to be converted to a usable
Source…..ATP

4. How do electrons go to where they are needed?
Carrier molecules (shuttles)
NAD + -- NADH
FAD +  FADH2
CoEnzymes

5. Where does Respiration Occur?
In the Mitochondria of eukaryotic cells

6. The Main purpose of Respiration?
Energy in the form of ATP
(Adenosine Triphosphate)

7. ATP Synthesis Substrate Level Phosphorylation
The reshuffling of chemical bonds
to couple ATP formation to a
highly exergonic reaction.
energy
Adenosine
phosphate

8. 2. Chemiosmosis Respiration create a proton gradient by
the transport of electrons by carrier
Molecule that drive a proton pump.
The Protons diffuse back into the matrix
Through a protein called ATPase, where
ATP is then formed.

9. Start with: Glucose Shuttles 2 ATP
Glycolysis 1.
Start with: Glucose
Shuttles
2 ATP
Where: Cytoplasm

10. End up with: 2 Pyruvate, 4 ATP (2 net) More Shuttles
What Happens:
Pyruvate
Glucose
(3C)
(6C)
Pyruvate
(3C)
End up with: Pyruvate, 4 ATP (2 net)
More Shuttles

11. Pyruvate Oxidation 2. Shuttles Where: Mitochondrial Matrix
Start with: Pyruvate
Shuttles
Where: Mitochondrial Matrix

12. Pyruvate Acetyl CoA What Happens:
Each pyruvate becomes an acetyl group which combines with CoEnzyme A to become Acetyl CoA
CO2
Pyruvate
Acetyl CoA
(3C)
(2C)
End up with: 2 Acetyl CoA 2 CO2, Shuttles

13. Citric Acid Cycle (Krebs Cycle)3.
Citric Acid Cycle (Krebs Cycle)
Start with: Acetyl CoA, Shuttles
Where: Mitochondrial Matrix

14. * 2 trips of cycle to breakdown 1 glucose
What Happens:
Acetyl CoA Oxaloacetic Acid
(2C)
(4C)
Repeats
Citric Acid
(6C)
Oxaloacetic Acid
2CO2
(4C)
* 2 trips of cycle to breakdown 1 glucose

15. 4 CO2 2 ATP Shuttles (many) with Many electrons
End up with:
4 CO2
2 ATP
Shuttles (many) with
Many electrons

16. Oxidative Phosphorylation (Electron Transport Chain)4.
Start with: Shuttles (to carry H+)
Oxygen
Where: Inner Mitochondrial membrane

17. molecules are produced by Chemiosmosis.
What Happens:
Electrons are passed down a chain of enzymes and CoEnzymes to a final electron acceptor of to form
molecules are produced by Chemiosmosis.
Oxygen
Water
32 ATP
End up with:
H2O, 32 ATP

19. Environment (animals) Photosynthesis (plants)
Final story
Used to form CO2 and H2O
C6H12O6 +6 O CO2 + 6H2O + ATP
Formed in
Pyruvate oxidation
And Krebs
Formed at
Electron transport
chain
Environment (animals)
Photosynthesis (plants)
*used in glycolysis
4 made and 2 used in glycolysis
2 made in Krebs
32 made in transport chain by chemiosmosis

20. THE END