(4) Aldolase(醛缩酶), named for the reverse reaction catalyzes the cleavage( lysis")of fructose 1, 6-bisphosphate from the middle c-c bond to form two 3-carbon sugars dihydroxyacetone phosphate and glyceraldehyde 3-phosphate this is a reversal aldol condensation reaction; thermodynamically very unfavorable under standard conditions (5)Triose phosphate isomerase(an extremely efficient enzyme)converts dihydroacetone phosphate to glyceraldehyde 3-phosphate; an intramolecular redox reaction(a hydrogen atom is transferred from C-1 to C-3)（4）Aldolase (醛缩酶), named for the reverse reaction catalyzes the cleavage (“lysis”) of fructose 1,6-bisphosphate from the middle C-C bond to form two 3-carbon sugars, dihydroxyacetone phosphate and glyceraldehyde 3-phosphate; this is a reversal aldol condensation reaction; thermodynamically very unfavorable under standard conditions. （5）Triose phosphate isomerase (an extremely efficient enzyme) converts dihydroacetone phosphate to glyceraldehyde 3-phosphate; an intramolecular redox reaction (a hydrogen atom is transferred from C-1 to C-3)