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GK QUESTION#3692

Which stage of cellular respiration produces the highest amount of energy (ATP)?

  1. AGlycolysis
  2. BKrebs cycle
  3. CElectron transport chainCorrect answer
  4. DFermentation
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Answer

C. Electron transport chain

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Explanation

Most ATP in aerobic respiration is produced through oxidative phosphorylation, coupled to the electron transport chain. Electron flow supports a proton gradient that drives ATP synthase. A fixed 34-ATP yield for this stage is not assumed.

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