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Question: Answered & Verified by Expert
Oxygen is very important for aerobic respiration, but oxygen never participates as a reactant in any reaction. What is the role of oxygen in cellular respiration?
BiologyRespiration in PlantsNEET
Options:
  • A It is terminal electron acceptor for aerobic respiration.
  • B It is a nucleotide source for ATP synthesis
  • C It functions as an electron carrier
  • D It is the final electron acceptor for anaerobic respiration
Solution:
1576 Upvotes Verified Answer
The correct answer is: It is terminal electron acceptor for aerobic respiration.
In aerobic respiration oxidation of glucose releases hydrogen which is carried by NAD+ or FAD+, this hydrogen is ultimately accepted by oxygen forming water. Oxygen functions as terminal electron acceptor in aerobic respiration.

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