Fermentation

Question 0

Two types of fermentation

Answer 0

• Alcohol fermentation

- Lactic acid fermentation

Question 1

Fermentation

Answer 1

• Anaerobic catabolism of organic nutrients
• Production of ATP in the absence of O2
• ATP is produced by glycolysis (2 molecules/glucose)

Question 2

Alcohol fermentation

Answer 2

glucose➡️(ADP to ATP & NAD+ to NADH)➡️pyruvate➡️(release of CO2)➡️acetaldehyde➡️(NADH to NAD-)➡️ethanol

Question 3

Lactic acid fermentation

Answer 3

In human muscles during exercise & some bacteria, glycolisis

Question 4

In common between fermentation & respiration

Answer 4

Use glycolysis: oxidize glucose to pyruvate, producing two moles of ATP

Question 5

Differences between fermentation & respiration

Answer 5

• Fermentation NAD+ is produced from NADH without the production of ATP
• Final electron acceptor in fermentation: pyruvate or acetaldehyde / respiration: oxygen
• Cellular respiration yields 16 times more ATP/glucose than fermentation