DUMET Medical DUMET Medical Solved Paper-2011

  • question_answer
    When the conditions are dry, a grass leaf curls inward to minimize water loss due to presence of

    A)  thick cuticle

    B)  large xylem cavities

    C)  parallel venation

    D)  bulliform cells

    Correct Answer: D

    Solution :

    The upper epidermis of monocots have large, thin walled and empty bulliform cells or motor cells containing water. These cells are mainly concerned with rolling and unrolling of leaf. The epidermis is cuticularised.


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