glycolysis - biolympiads · glycolysis can proceed only if the ag values of all reactions are...
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Glycolysis
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The three steps
Glucose + 2Pi +2ADP +2NAD
2Pyruvate + 2ATP +2NADH +2H+ +2H2O
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Glucose to Glucose 6 phosphate
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Hexokinase
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G6P to F6P
Phosphohexose isomerase
Mg++
ΔG’O=1.7 kJ/mol
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ΔG’o= -14.2 KJ/mol
F6P to F1,6, BP
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F1,6BP to DHAP & G3P
ΔG’O = 23.8kJ/mol
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DHAP & GAP
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GAP to 1,3-BPG
ΔG’O = 6.3kJ/mol
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1,3-BPG to 3-PG
ΔG’O = -18.5kJ/mol
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3’PG to 2’PG
Rearrangement shifts PO4 position from C3 to C2.
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2PG to PEP
Enol PO4
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PEP to Pyruvate
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Thermodynamics
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Uses of Pyruvate
Regeneration of NAD
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Pyruvate to ethanol
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Pyruvate to lactate
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Recycling NAD
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Xxxxxxxx
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Galactose
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Glycogen to glucose (starvation)
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