Total ATP production durig EMP pathway is

Options

A. 24 ATP molecules
B. 8 ATP molecules
C. 38 ATP molecules
D. 6 ATP molecules

Answer

B

Explanation

In glycolysis :
ATP Production –
* `underset(("2 Mol"))("1,3 Bisphosphoglycerate")overset(ADP rarr2ATP)rarrunderset("(2 Mol)")(" 3 Phosphoglycerate")`
`underset(("2 Mol") )("Phosphoenol Pyruvate ")overset(ADP rarr2ATP)rarrunderset("(2 Mol)")(" Pyruvate")`
Thus ATP Production = 4mol
ATP Consumption –
`underset(("1 Mol"))("Glucose ")underset("Hexokinase ")overset(ADP rarrATP)rarrunderset("(1 Mol)")(" Glucose 6 Phosphate")`
`underset(("1 Mol"))("Fructos 6 Phosphate ")undersetunderset("Fructokinase") ("Phospho")overset(ADP rarrATP)rarrundersetunderset("(1 Mol)")("Bisphosphate")(" Fructos1,6")`
Thus ATP Consumption = 2mol
NADH Production
`undersetunderset("(2 Mol)")("3Phosphate")("Glyceraldehyde")overset(NAD^(+) rarr NADH+H^(+))rarrundersetunderset(("2 Mol"))("Glyceraldehyd") ("1,3Bisphospho")`
1 mol of NAD Produces 3 mol of ATP
2 mol of NAD Produces 6 mol of ATP
Thus net gain of ATP = 8 ATP.