text: D-glyceraldehyde 3-phosphate is formed from the following three compounds in reversible reactions:
  *Fructose-1,6-bisphosphate (F1,6BP), catalyzed by aldolase.
  The numbering of the carbon atoms indicates the fate of the carbons according to their position in fructose 6-phosphate.
  *Dihydroxyacetone phosphate (DHAP), catalyzed by triose phosphate isomerase.
  *1,3-bisphosphoglycerate (1,3BPG), catalyzed by glyceraldehyde 3-phosphate dehydrogenase.