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NTA Abhyas NEET2020BotanyRespiration in PlantsPractice

During which stage in the complete oxidation of glucose is the greatest number of ATP molecules produced from ADP?

Options

  1. AGlycolysis
  2. BKreb's cycle
  3. CDecarboxylation
  4. DETS

Correct answer

D. ETS

Step-by-step solution

Total NADH entering ETS is 10 (2 NADH from glycolysis, 2 NADH from link reaction, 6 NADH from Krebs' cycle. ATP formed from 1 NADH is 3. Thus ATP formed from 10 NADH is 30. Total FADH2 entering ETS is 2 (from Krebs' cycle). ATP formed from 1 F A D H 2 is 2. Thus, ATP formed from 2 F A D H 2 is 4. Thus the ATP formed in ETS is 34 out of the total 38 produced by complete aerobic respiration of one molecule of glucose

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