BCECE Medical BCECE Medical Solved Papers-2007

  • question_answer
    Reaction centre of photosystem-I in green plants is

    A)  \[{{P}_{680}}~\]

    B)  \[{{P}_{690}}~\]

    C)  \[{{P}_{700}}~\]

    D)  \[{{P}_{780}}~\]

    Correct Answer: C

    Solution :

    Photosystem-I is photosynthetic pigment system alongwith some electron carriers. The photocenter has a dimer of special chlorophyll- a molecules called \[{{P}_{700}}\]. It takes part in both cyclic and non-cyclic photophosphorylation. The photocentre in photosystem-II has a dimer of special chlorophyll-a molecules called \[{{P}_{680}}\]. Light harvesting complex consists of chlorophyll-a molecules, Chlorophyll-b and carotenoid molecules. It takes part in non-cyclic photophosphorylation only.


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