3. Lactic And Alcoholic Fermentation

LACTIC & ALCOHOLIC FERMENTATION H H OH H HOCH2 ---C---C---C---C--CHO OH OH H OH

GLUCOSE

ATP

H H OH H P-OCH2---C---C---C---C--CHO OH OH H OH Glucose-6-P H H OH P-OCH2---C---C---C---CO--CH2OH OH OH H Fructose-6- P

ADP

ATP

H H OH P-OCH2 ---C---C---C---CO--CH2OP OH OH H Fructose-1,6-bis-P P-OCH2 COCH OH 2

ADP

Glycerone-3-P

(Di-OH-acetone- P) P-OCH2 CH(OH)CHO

3-P-Glyceraldehyde

2NAD+ 2Pi

P-OCH2CH(OH)COO- P

1,3-bis-P-Glycerate P -OCH2 CH(OH)COO

2ADP

_

2 NADH+2H

+

2 ATP

3-P-Glycerate

Aerobics ? Anaerobics?

_ P-OCH2CH(O- P)COO

2-P-Glycerate

CH2 =C(O-P) COO

_

P-enolpyruvate

CH3COCOO

2ADP

_

2H2O 2ATP

PYRUVATE CH3CHO

Acetaldehyde

CO2

Lactic Fermentation C6H12O6 + 2ADP + 2Pi Glucose

2CH3CH(OH)COO- + 2ATP + 2H2O Lactate

Alcoholic Fermentation

C6H12O6 + 2ADP + 2Pi Glucose

2CH3CH2OH + 2CO2 + 2ATP + 2H2O Ethanol

CH3CH(OH)COO

_

LACTATE CH3CH2OH

ETHANOL