Question

What is net ATP production in glycolysis?

Answer 1

Two ATPs are invested initially when the glucose gets converted into glucose-6- phosphate and fructose-6- phosphate gets converted to fructose 1,6 biphosphate.

Four ATPs are released (each two) in another two reactions when-

i) 1,3 biphosphoglycerate gets converted to 3 phosphoglycerates and.

ii) phosphoenolpyruvate gets converted to pyruvate.

So the net gain is 2 ATPs in glycolysis.