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MHT CET Medical202625 April 2026Morning ShiftBiologyRespiration in PlantsActual

How many ATP molecules are produced thorough ETS, out of 38 molecules produced after complete oxidation of one glucose molecule?

Options

  1. A4
  2. B8
  3. C32
  4. D34

Correct answer

D. 34

Step-by-step solution

During the complete oxidation of one glucose molecule, a total of 38 ATP molecules are produced. Substrate-level phosphorylation (SLP) directly yields ATP without the involvement of the Electron Transport System (ETS). The ATP produced via SLP is: Glycolysis: 2 ATP Krebs cycle: 2 ATP (one per turn, two turns per glucose) Total ATP from SLP = 4 ATP. The remaining ATP molecules are generated through oxidative phosphorylation via the ETS from reduced coenzymes (NADH and FADH₂ ). Total ATP from ETS = Total ATP - ATP fr

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