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52. List the characteristics of cork. How are they formed? Mention their role.

52. List the characteristics of cork. How are they formed? Mention their role.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
one year ago
Characteristics of cork : (i) Outer rough surface of older stem and roots. (ii) Impermeable cells are arranged in layers due to the presence of suberin in the walls. (iii) Cells become dead on maturity and store resins, and tannins. (iv) It is usually formed by secondary lateral meristematic tissues, i.e. cork cambium. As plant grow older, a strip of secondary meristem replaces the epidermis of the stem. Cells cut on the outer side by this meristem are called cork. Importance of corks : a. Prevent water loss. b. Protected against the mechanical injuries. c. Facilitates the gaseous exchange due to presence of lenticels. d. For household usage.

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