THE EMBDEN-MEYERHOF PATHWAY 



Glucose 



213 



© 



^ 



ATP 



ADP 



Glucose-6-phosphate 



©11 



Fructose-6-phosphate 



© 



^ 



ATP 



ADP 



Fructose-1, 6-diphosphate 



© 



D-Glyceraldehyde-3-phosphate ^ 



© 



+H3PO4 



r 



DPN" 



© 



— Dihydroxyacetone phosphate 



DPNH + H' 



1,3-Diphosphogly eerie acid 



© 



V 



ADP 



ATP 



3-Phosphoglyceric acid 



®\\r 



©IN 

 ®\\ 



Pyruvate 



Ethanol 



ADP 

 ATP 



© 



■DPN 



v^ 



DPNH + H' 



Acetaldehyde + CO2 



Figure 4. Schematic outline of the Embden-Meyerhof pathway of yeast. Abbrevia- 

 tions: ATP — adenosine triphosphate, ADP — adenosine diphosphate, DPN* — di- 

 phosphopyridine nucleotide, DPNH — reduced diphosphopyridine nucleotide. En- 

 zymes are numbered as follows: 



1 . Hexokinase 



2. Phosphohexoisomerase 



3. Phosphofructokinase 



4. Aldolase 



5. Triosephosphate isomerase 



6. Triosephosphate dehydrogenase 



7. Phosphoglyccryl kinase 



8. Phosphoglyceryl mutase 



9. Enolase 



10. Phosphoenolpyruvic transphosphorylase 



1 1 . Pyruvic carboxylase 



12. Alcohol dehydrogenase 



