How many NAD molecules get reduced in complete oxidation of one glucose molecule

Options

A. Two are produced outside in glycolysis and 34 during respiratory chain
B. Five
C. Ten
D. Twelve

Answer

C

Explanation

(c)Complete oxidation of glucose involves both glycolysis and krebs' cycle along with oxidative decarboxylation,Where 2NAD reduced in glycolysis, producing 2 pyruvic acid molecules.They undergo oxidative decarboxylation forming 2 molecules acetyl Co-A by reducing 2NAD and these acetyl Co-A enters krebs' cycle where they reduce 6 NAD.Thus,10 NAD reduced in complete oxidation of glucose.