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MMLU-Pro / 3204 / Energy is harvested during cellular respiration in stages. Which of the…

Problem

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question

Energy is harvested during cellular respiration in stages. Which of the following correctly states which phase of cellular respiration harvests the most energy and the correct explanation why?

category

biology

options

  1. The most energy is released during oxidative phosphorylation because H2O is completely broken down into H+ and O2.
  2. The most energy is released during oxidative phosphorylation because in addition to the phosphorylation of ADP into ATP, all the potential energy held in NADH and FADH is transferred to ATP.
  3. The most energy is released during the Krebs cycle because it is here that pyruvate is completely broken down into CO2.
  4. The most energy is released during the Krebs cycle because it involves the release of energy from the oxidation of acetyl CoA.
  5. The most energy is released during glycolysis because it is the first step in the breakdown of glucose to extract energy for cellular metabolism.
  6. The most energy is released during the Krebs cycle because in addition to the production of ATP, both FADH2 and NADH are produced. Each of those molecules will release 2 ATPs and 3 ATPs, respectively.
  7. The most energy is released during the Krebs cycle because it produces the most ATP molecules.
  8. The most energy is released during the electron transport chain because it is the final stage of cellular respiration where the majority of ATP is produced.
  9. The most energy is released during glycolysis because it produces ATP and NADH, which are used in the subsequent steps of respiration.
  10. The most energy is released during oxidative phosphorylation because it involves the transfer of electrons from NADH or FADH2 to O2.

src

ori_mmlu-high_school_biology

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