Uttarakhand PMT Uttarakhand PMT Solved Paper-2008

  • 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 \[{{C}_{4}}\]plants like maize, sugarcane. In this type of anatomy, bundle sheach chloroplasts are larger, agranal and undifferentiated mesophyll cells fix carbon dioxide with the help of phosphoenol pyruvate in the presence of PEPase. Mesophyll is not differentiated into spongy cells and palisade cells.


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