1. Cellular Respiration

2. O2 + C6H12O6  CO2 + H2O + Energy (ATP)
Cell respiration
O2 + C6H12O6  CO2 + H2O + Energy (ATP)

3. Mitochondria

4. What is energy? ATP = adenosine triphosphate
“the energy currency of the cell”

5. ATP to ADP and back to ATP
Energy is released when the last P is knocked off. (energy is needed to reattach the P.)
A-P-P-P  A-P-P +P
ATP ADP +P

6. There are 3 processes in cell respiration
Glycolysis – splitting of glucose
Kreb’s Cycle – aerobic respiration
Electron Transport chain (ETC) – also aerobic, produces most of the energy

7. GLYCOLYSIS Takes place in the cytoplasm Net gain of 2 ATP
Needs 2 ATP to start reaction
Products:
2 ATP = energy
2 NADH = electron carrier
2 Pyruvic acid = will be broken down next
* Does not require O2

8. Kreb’s Cycle AKA: “citric acid cycle”
Occurs in the matrix of the mitochondria
Produces:
1) Hydrogen carriers (NADH & FADH)
2) 1 ATP per pyruvate
3) CO2

9. ETC (Electron transport chain)
Produces most (95%)of the energy (ATP) from cell respiration.
Is an aerobic process (needs oxygen)
Occurs in the inner membrane of the mitochondria
Bounces H+ across membrane to make lots of ATP
Attaches the Hydrogen to oxygen to produce water