Total NADH formed by one glucose molecule during Krebs's Cycle are:

Explanation

During the Krebs cycle, which is also known as the citric acid cycle or tricarboxylic acid (TCA) cycle, one molecule of glucose results in the formation of a total of 6 molecules of NADH. The Krebs cycle involves a series of reactions in which acetyl-CoA, derived from the breakdown of glucose, is further oxidized. For each turn of the Krebs cycle, three molecules of NADH are produced. Since glycolysis produces two molecules of pyruvate (and therefore, two molecules of acetyl-CoA), and each molecule of glucose generates two molecules of pyruvate, a complete oxidation of one glucose molecule through the Krebs cycle results in the formation of 6 molecules of NADH.