Final answer:
Fructose bisphosphate aldolase converts F16BP into GAP and DHAP in the glycolysis pathway, and then triose-phosphate isomerase converts DHAP into another GAP molecule.
Step-by-step explanation:
The enzyme responsible for converting fructose 1,6-bisphosphate (F16BP) into glyceraldehyde-3-phosphate (GAP) and dihydroxyacetone phosphate (DHAP) is fructose bisphosphate aldolase, also known simply as aldolase. During the glycolytic pathway, aldolase cleaves F16BP into these two three-carbon isomers. These steps are central to the energy-yielding phase of glycolysis. Subsequently, the enzyme triose-phosphate isomerase converts DHAP into its isomer GAP, ensuring that the pathway continues with two molecules of GAP.
The steps involving these enzymes are energy-dependent, with a high free-energy change, signifying that they are endergonic reactions. Moreover, the reactions catalyzed by these enzymes are reversible, displaying the dynamic nature of metabolic pathways.