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Citric Acid Cyclein the Mitochondria
Glycolysis in the Cytoplasm
glucose
C
6
glucose 6-phosphate
C -P
6
fructose 6-phosphate
C -P
6
ATP
ADP
ATP
ADP
glyceraldehyde 3-phosphate
P-C
3
2x
2 NAD+
2 NADH
2P
EnergyInvestmentStage
-2 ATP
EnergyHarvestingStageNet Gain:2 ATP
+4 ATP
1,3-biphosphoglycerate
P-C -P
3
2x
2 ATP
2 ADP
3-phosphoglycerate
P-C
3
2x
phosphoenolpyruvate
P-C
3
2x
H O
2
2 ATP
2 ADP
pyruvate
C
3
2x
Citrate
C
6
Ketoglutarate
C
5
Succinate
C
4
Fumarate
C
4
Krebs Cycle
(acetyl-CoA)
CoA
Oxaloacetate
C
4
CO
2
(waste)
NAD+
NADH
CO
2
NAD+
NADH
ATP
FAD
FADH
2
NAD+
NADH
H+ pumps
e-
e-
NADH + H+
e-
e-
FADH
2
FAD
H+
H+
H+
H+
H+
H+
H+
H+
e-
NAD + 2
H+
H+
2 + 1/2 O
2
H+
H O
2
ATP
2H
+
ADP
+
P
i
ATP Sythesis
ATP
Electron Transport Chain
intermembrane space low pH / high H+
complex III
complex III
complex I
complex I
ELTH
ELTH
complex IV
complex IV