EAMCET Medical EAMCET Medical Solved Paper-2008

  • question_answer
    The tracheophyte characterized by habitual heterophylly, absence of companion cells in phloem and presence of vessels in the xylem is

    A)  Drimys                                                

    B)  Pteris

    C)   Selaginella                        

    D)  Gnetu

    Correct Answer: D

    Solution :

                     In Gnetum (Gymnosperm - Tracheophyta) the leaves are of two kinds, .i.e., the scaly leaves and foliage leaves. The shape of the lamina varies with species and may be oblong, elliptical , or even lanceolate. The companion cells are absent in phloem, while vessels are present in xylem.


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