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NTA Abhyas NEET2020BotanyRespiration in PlantsPractice

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?

Options

  1. AIt is terminal electron acceptor for aerobic respiration.
  2. BIt is a nucleotide source for ATP synthesis
  3. CIt functions as an electron carrier
  4. DIt is the final electron acceptor for anaerobic respiration

Correct answer

A. It is terminal electron acceptor for aerobic respiration.

Step-by-step solution

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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