Question

    Impervious nature of cork for water is due to deposition

    of which chemical?
    A Lignin Correct Answer Incorrect Answer
    B Suberin Correct Answer Incorrect Answer
    C Pectin Correct Answer Incorrect Answer
    D Hemicellulose Correct Answer Incorrect Answer

    Solution

    • Cork (outer bark of trees) is water-resistant due to the presence of suberin, a hydrophobic (water-repelling) substance. • Lignin provides rigidity but does not make cork water-resistant. • Pectin and Hemicellulose are part of the plant cell wall but do not contribute to water resistance.

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