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  4. Aerobic respiration of glucose produces ATP. How many of them are produced during electron transport system?

Q. Aerobic respiration of glucose produces ATP. How many of them are produced during electron transport system?

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Solution:

Electron transport system is responsible for oxidation of reduced coenzymes. 1 NADH passes through ETS to release 3 ATP while 1 passes through ETS to release 2 ATP. One molecule of glucose produces 10 NADH (2 from Glycolysis, 2 from link reaction and 6 from Krebs cycle). Thus, 30 ATPs will be formed from them. One molecule of glucose also produces 2 from Krebs cycle. Thus, 4 ATPs will be formed from them. Thus total ATP produced from ETS is 34.