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Question

Torus is composed of

A
Suberin
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B
Chitin
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C
Cutin
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D
Lignin
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Solution

The correct option is A Suberin
Torus is composed of suberin. Torus is the thickened part of a stem, the receptacle, from which the flower and fruit parts grow. Torus, a structure of the xylem. Suberin is highly hydrophobic and a somewhat rubbery material. Its main function is to prevent water from penetrating the tissue. In roots, suberin is deposited in the radial and transverse cell walls of the endodermal cells.
Thus, the correct answer is option A.

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