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Fermentation Fermentation

Occurs in cytoplasm when “NO Oxygen”“NO Oxygen” is present (called anaerobic).(called anaerobic).

Remember: glycolysisglycolysis is part of fermentationfermentation.

Two Types:Two Types:

1.1. Alcohol FermentationAlcohol Fermentation

2. Lactic Acid Fermentation2. Lactic Acid Fermentation

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Alcohol FermentationAlcohol Fermentation

Plants and FungiPlants and Fungi alcohol, alcohol, makes dough risemakes dough rise

glucose

Glycolysis

CCCCCC

CCC

2 Pyruvic acid

2ATP2ATP2ADP+ 2

2NADH

P

2 NAD+

CC

2 Ethanol2 Ethanol2CO2CO22

releasedreleased

2NADH 2 NAD+

3

Alcohol FermentationAlcohol Fermentation

End Products: Alcohol fermentationEnd Products: Alcohol fermentation

2 - ATP

2 - CO2

2 - Ethanol’s

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Lactic Acid FermentationLactic Acid Fermentation

Animals (pain in muscle after a Animals (pain in muscle after a workout).workout).

2 Lactic2 Lactic acidacid

2NADH 2 NAD+

CCC

Glucose

GlycolysisCCC

2 Pyruvic acid

2ATP2ATP2ADP+ 2

2NADH

P

2 NAD+

CCCCCC

5

Lactic Acid FermentationLactic Acid Fermentation

End Products: Lactic acid End Products: Lactic acid fermentationfermentation

2 - ATP

2 - Lactic Acids

-Production of cheese, yogurt, buttermilk, and sour cream – the acid contributes to the sour taste.

-Pickles and sauerkraut are produced by lactic acid.