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MGIMS WARDHA MGIMS WARDHA Solved Paper-2009

  • question_answer
    In the electron transport chain, in terminal oxidation, the cytochrome, which donates electrons to \[{{O}_{2}}\] is

    A)  cytochrome-\[b\]          

    B)  cytochrome-\[c\]

    C)   cytochrome-\[{{a}_{3}}\]          

    D)  cytochrome-\[a\]

    Correct Answer: C

    Solution :

                     The cytochrome\[\text{-}{{\text{a}}_{\text{3}}}\] is an electron carrier which contains copper with iron. It picks up electrons and through copper, it hands over electrons to oxygen. Oxygen accepts electrons finally.


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