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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2010

  • question_answer
    In the leaves of \[{{C}_{4}}\]-plants, malic acid formation during \[C{{O}_{2}}\] fixation occurs in the cells of

    A)  mesophyll                         

    B)  bundle sheath

    C)  phloem              

    D)         epidermis

    Correct Answer: A

    Solution :

    The oxalic acid is reduced to malic acid in mesophyll cells, from chloroplast of mesophyll cells. The malic acid is transferred to the chloroplast of bundle sheath cells where it is decarboxylated to form \[C{{O}_{2}}\] and pyruvic acid.


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