Consider the function of coenzyme NAD in glucose oxidation. In the method of glycolysis the formation of pyruvate comprises the reduction of the coenzyme NAD to NAD.2H.
a) Which other phases of glucose oxidation generate molecules of the reduced coenzyme, NAD.2H?
b) Describe what happens to NAD.2H produced throughout glycolysis in:
• An animal cell respiring aerobically.
• An animal cell respiring anaerobic ally.
c) The oxidation of NAD.2H is an energy-releasing method. Name the energy-requiring process it is coupled to and why this is significant for the cell.