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    In which of the following reactions of respiration is oxygen required?
    Question

    In which of the following reactions of respiration is oxygen required?

    A.

    Conversion of glucose to pyruvate

    B.

    Conversion of pyruvate to CO2,H2OCO_2,H_2O and energy

    C.

    Conversion of pyruvate to ethanol

    D.

    Conversion of pyruvate to CO2CO_2​​

    Correct option is B

    The correct answer is option (b) Conversion of pyruvate to CO₂, H₂O, and energy

    • Respiration is the biological process by which cells break down glucose to release energy.
    • It is categorized into aerobic respiration (requires oxygen) and anaerobic respiration.

    Information Booster :-

    • Oxygen is only required for aerobic respiration.
    •  It is essential for the complete breakdown of pyruvate into CO₂, H₂O, and a large amount of energy (ATP).

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