NEET Biology Respiration In Plants Question Bank Krebs Cycle and ETS

  • question_answer
    Final electron acceptor in ETS is [Kerala CET 2002; CPMT 2003; BHU 2004]

    A) \[{{H}_{2}}O\]

    B) \[{{O}_{2}}\]

    C) \[cvt\,\,{{a}_{3}}\]

    D) \[cvt\,\,a\]

    Correct Answer: B

    Solution :

    The oxygen is the terminal acceptor of electrons which forms a water molecule in presence of protons in ETS \[\left( \frac{1}{2}{{O}_{2}}+2{{e}^{-}}\to {{O}^{-2}},\,2{{H}^{+}}+{{O}^{-2}}\to {{H}_{2}}O \right)\]


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