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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2005

  • question_answer
    Identify from the following, a plant tissue in which lignin does not occur in the cell walls?

    A)  Collenchyma

    B)  Sclerenchyma fibres

    C)  Sclereids

    D)  Xylem tracheae

    Correct Answer: A

    Solution :

    Collenchyma cells are elongated and polygonal with tapering ends, found in outer region of cortex e.g., angles of stems, midrib of leaves etc. The cell wall of collenchyma consist of cellulose, pectins and hemicellulose.


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