1. 9.3 Fermentation

2. Fermentation
= process that releases energy from food molecules in the absence of oxygen
Occurs in cytoplasm
2 types –
Alcoholic Fermentation
Lactic Acid Fermentation

3. After glycolysis, pyruvic acid enters fermentation process
Some organisms  alcoholic fermentation
Pyruvate + NADH  Alcohol +CO2 + NAD+
Ex. Yeast, some bacteria

4. Most organisms  lactic acid fermentation
Pyruvate + NADH  lactic acid + NAD+
Ex. Humans, some bacteria

5. Exercise and Energy
Quick energy for short race  ATP in muscles and ATP from lactic acid fermentation
Energy for longer race  ATP from cellular respiration (oxidative)