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WBCS Preliminary Examination 2017 — General Studies · Question 119 of 200

Q119
General ScienceBiology
Which of the following processes makes direct use of oxygen?
  1. a.Glycolysis
  2. b.Fermentation
  3. c.Citric Acid Cycle
  4. d.Electron transport

Answer: (D) Electron transport

The electron transport chain is the stage of cellular respiration where oxygen is directly consumed, acting as the final electron acceptor to form water; glycolysis and fermentation are anaerobic, and the citric acid cycle itself doesn't directly use O2.

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Which of the following processes makes direct use of oxygen? — WBCS Preliminary Examination 2017 Q119 | Prostuti360°