BHU PMT BHU PMT Solved Paper-2004

  • question_answer
    In \[{{C}_{4}}\]plants, the carbon dioxide fixation occurs in :

    A)  guard cells                         

    B)  spongy cells      

    C)   palisade cells                   

    D)  bundle sheath cells

    Correct Answer: D

    Solution :

                     Kranz anatomy is characteristic feature of leaves of C2 plants like maize, sugarcane. In this type of anatomy, bundle sheath chloroplasts   are   larger,   agranal   and un differentiated mesophyll cells fix carbon dioxide with the help of phosphoenol pyruvate in the presence of PEP a se. Mesophyll is not differentiated into spongy cells and palisade cells.


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