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Cancer cells require large amounts of ATP. Which of the following produces a high number of ATP?

Correct answer: C. Oxidative Phosphorylation

  • A. Glycolysis
  • B. Krebs cycle
  • C. Oxidative Phosphorylation
  • D. Electron transport chain

Explanation

Oxidative phosphorylation is the final stage of cellular respiration and takes place in the inner mitochondrial membrane. It involves the electron transport chain (ETC) and ATP synthase to produce a large number of ATP molecules. Oxidative phosphorylation is highly efficient and can produce up to 34 ATP molecules per glucose molecule, making it the primary process for generating large amounts of ATP in the presence of oxygen.

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About Bioenergetics

Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.

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