RAJASTHAN PMT Rajasthan - PMT Solved Paper-2009

  • question_answer
    One of the most resistant known biological material is

    A)  lignin                                   

    B)  hemicellulose

    C)  sporopollenin    

    D)        lignocelluloses

    Correct Answer: C

    Solution :

    Sporopollenin is the most resistant known biological material, found in the exine of pollen grains. It is resistant to chemical and microbial decomposition. Due to it, the pollen grains are well preserved during fossilization.


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