Fermentation (anaerobic respiration)

1
Fermentation(anaerobic respiration)

• No oxygen
• Many different types

2
2 examples

• Alcoholic fermentation in yeast
• Pyruvate ? acetaldehyde CO2 ?ethanol
  (alcohol)
• Lactic acid fermentation
• Animal cells (when no O2 available)

3
If no O2 then

• NADH builds up
• No NAD available
• Glycolysis and Krebs shut down
• But, fermentation allows glycolysis to occur (it
  generates NAD)
• Glucose ? lactic acid (in our muscles)
• Lactic acid builds up (muscle pain fatigue)
• Oxygen debt

4
(No Transcript)