1. Cellular Respiration and Fermentation
Chapter 9
Cellular Respiration and Fermentation

2. Organisms get energy from food
Energy in food measured in calories
Calorie = amount of energy needed to raise the temp. of 1 gram of water 1o C
Unit Calorie = 1 kilocalorie (1000 calories)
Energy released as heat and chemical energy

4. Cellular Respiration
= process that releases energy from food in the presence of oxygen
C6H12O6 + 6O2  6CO2 + 6H2O + energy
Release energy a little bit at a time in the form of ATP

6. Step 1- Glycolysis Glycolysis = breaking down of glucose
Occurs in cytoplasm
Is anaerobic

7. Glucose
2 molecules of pyruvate
also produces 2 NADH
Uses 2 ATP
Makes 4 ATP
Net profit of ATP = 2 ATP

9. Step 2 - Fermentation or oxidative respiration
If anaerobic,  fermentation
If aerobic,  oxidative respiration

10. Oxidative Respiration
occurs in mitochondria
2 steps
- Krebs cycle
- Electron transport chain