1
Question
How many NAD molecules get reduced in complete oxidation of one glucose molecule?
How many NAD molecules get reduced in complete oxidation of one glucose molecule?
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Solution
The correct option is C 10
During cellular respiration, complete oxidation of glucose takes place through glycolysis and Krebs cycle.
In the process of glycolysis, 6 carbon compound of glucose (1 molecule) splits into two 3 carbon compounds of pyruvic acid (2 molecules), In this process, 2 molecules of NADH are generated.
During Krebs cycle, for every pyruvic acid that enters the pathway, 4 molecules of NADH are produced. Since 2 pyruvic acid molecule are produced during glycolysis, a total of 8 NADH are produced in krebs cycle.
Therefore, during the complete oxidation of glucose, a total of 10 NAD molecules are reduced to NADH.
The energy stored within the NADH is released in the form of ATP during the electron transport chain.
During cellular respiration, complete oxidation of glucose takes place through glycolysis and Krebs cycle.
In the process of glycolysis, 6 carbon compound of glucose (1 molecule) splits into two 3 carbon compounds of pyruvic acid (2 molecules), In this process, 2 molecules of NADH are generated.
During Krebs cycle, for every pyruvic acid that enters the pathway, 4 molecules of NADH are produced. Since 2 pyruvic acid molecule are produced during glycolysis, a total of 8 NADH are produced in krebs cycle.
Therefore, during the complete oxidation of glucose, a total of 10 NAD molecules are reduced to NADH.
The energy stored within the NADH is released in the form of ATP during the electron transport chain.
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