Glycolysis
![Glucose
G6P
F6P
F1,6BP
GADP
DHAP
1,3BPG
3PG
2PG
PEP
Pyruvate
HK
PGI
PFK
ALDO
TPI
GAPDH
PGK
PGM
ENO
PK
The metabolic pathway of glycolysis converts glucose to pyruvate by via a series of intermediate metabolites. Each chemical modification (red box) is performed by a different enzyme. Steps 1 and 3 consume ATP (blue) and steps 7 and 10 produce ATP (yellow). Since steps 6-10 occur twice per glucose molecule, this leads to a net production of ATP.](/Images/godic/202501/15/Glycolysis_metabolic_pathway_3.svg0231.png")
![](/Images/godic/202501/15/D-glucose_wpmp.svg0231.png")
![](/Images/godic/202501/15/Metabolism_of_common_monosaccharides,_and_related_reactions0231.png")
![Eduard Buchner. Discovered cell-free fermentation.](/Images/godic/202501/15/Eduardbuchner0231.jpg")
Glycolysis (from glycose, an older term for glucose + -lysis degradation) is the metabolic pathway that converts glucose C6H12O6, into pyruvate, CH3COCOO + H. The free energy released in this process is used to form the high-energy compounds ATP (adenosine triphosphate) and NADH (reduced nicotinamide adenine dinucleotide).