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Question

The wall of cork cells is mostly impregnated with

A
Cutin
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B
Suberin
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C
Lignin
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D
Hemicellulose
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Solution

The correct option is D Suberin
Suberin is a main constituent of cork and forms the cork cell wall. Its main function is as a barrier to movement of water and solutes. Suberin acts as a physical barrier, preventing water loss from the tissues it surrounds. It also provides protection against pathogens. It forms a significant component of the wound healing process in plants. Thus the correct answer is option B.

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