Multiple choice

Which tissue contributes to the hardness of seed coat?

  1. Sclerenchyma

  2. Collenchyma

  3. Parenchyma

  4. Epidermis

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A Correct answer
Explanation

Sclerenchyma is a tissue composed of dead cells with extremely thick, lignified walls that provide maximum mechanical strength. Sclereids, a specific type of sclerenchyma cell, are responsible for the hardness of seed coats and nut shells. This protection is vital for the dormant embryo inside.