Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

  • question_answer
    In photosynthesis electron transport system, manganese ions are associated with

    A)  oxygen evolving complex

    B)  cytochrome \[{{f}_{0}}-{{f}_{1}}\]

    C)  cytochromehy bg \[{{b}_{6}}-f\]complex

    D)  plastoquinones

    Correct Answer: A

    Solution :

    Photosynthetic oxygen evolving complex, the only known biochemical system, that carries out oxidation of water and forms molecular oxygen. It has been known from many years that the manganese is an essential cofactor in the water oxidation process. Analytical experiments indicate that four Mn2+ ions are associated with each oxygen evolving complex.


You need to login to perform this action.
You will be redirected in 3 sec spinner