Which of the following conversions involve ATP synthesis during glucolysis?

Options

A. Glucose `rarr` Glucose-6-phosphate
B. Fructose-6-phosphate `rarr` Fructose-1,6-biphosphate
C. 1,3-bisphonsphoglyceric acid (BPGA) `rarr` 3-phosphoglyceric acid (PGA)
D. All of these

Answer

C

Explanation

In the energy conserving phase of glycolysis, the conversion of BPGA to PGA is catalysed by phosphoglycerate kinase. The phosphate on carbon 1 is transferred to a molecule of ADP, yielding ATP and 3-phophoglycerate. This type of ATP synthesis, traditionally referred to as substrate-level phosphorylation, involves the direct transfer of a phosphate group from a substrate molecule to ADP, to form ATP
`"1-2-bisphosphoglycerate + ADP" underset(Mg^(2+))(overset("Phosphoglycerate kinase")(hArr)) "3-phosphoglycerate + ATP"`