At the complete end of cellular respiration, how many molecules of ATP are produced?
a. 15 ATP
b. 26 ATP
c. 38 ATP
d. 34.ATP
Answer: c. 38 ATP
Explanation:
On complete oxidation of one molecule of glucose yields 38 ATP. Break up of energy production is given below:
During glycolysis 2 ATP and 2 NADH is produced.
During formation of Acetyl CoA, 2 NADH is produced.
During Citric Acid Cycle, 2 ATP, 6 NADH, 2 FADH? are produced.
Finally during Electron transport chain, reduced coenzymes NADH and FADH? oxidised to release ATP. Each NADH produce 3ATP and each FADH? produces 2 ATP. Altogether 10 NADH is produced during entire process of cellular respiration which yield 30 ATP and 2 FADH? yields 4 ATP. Therefore, on complete oxidation of one molecule of glucose yields 38 ATP.
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