Correct Answer - A
Glucose on phosphorylation by ATP forms glucose 6-phosphate. It isomerises into fructose 6 phosphate which on further phosphorylation forms fructose 1, 6 biphosphate (previously called fructose 1, 6-Di phosphate). It cleaves to form two tautomers in dynamic equilibrium which are DHAP and PGAL. PGAL (= GAP) is further phosphorylated by `H_3PO_4` to form 1, 3 bi phosphoglyceric acid.
