Fermentation

1
Fermentation

• Anaerobic Respiration

2
Overview

• Pyruvate is reduced to
• Alcohol and CO2 or
• Lactate
• Yeast and plants (alcohol fermentation)
• Animals, bacteria, and fungi (lactic acid
  fermentation)

3
Alcohol Fermentation
Glucose
4
Alcohol Fermentation

• Glucose ? 2 Pyruvate
• 2 ATP produced
• 2 NADH produced
• Pyruvate ? acetyl aldehyde CO2
• Acetyl aldehyde ? ethanol
• 2 NADH used

5
Lactic Acid Fermentation
Glucose
6
Lactic Acid Fermentation

• Glucose ? 2 Pyruvate
• 2 ATP produced
• 2 NADH produced
• Pyruvate ? Lactate (ionized lactic acid)
• 2 NADH used