Question

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

Answer 1

Explanation:

Cork cells are dead and closely packed without intercellular spaces. b) Cork cells are made impervious by a layer of suberin, a waxy material. Cork is formed by the division of cork cambium or the lateral meristem(phelloderm). Cork provides mechanical strength to trees and is fire resistant

Answer 2

Explanation:

 Cork cells are mature and dead

 They are compactly arranged

 They do not have intercellular spaces

 They are thick and have several layers.

Outer protective tissue of the plant undergoes changes with age. Epidermis of the stem is replace by a secondary

meristem call phellogen or cork cambium .It is a simple tissue which consists of rectangular cells whose

protoplasts are vacuolated. Cork cells contains tanins and chloroplasts.

Cork cambium forms cork on the outer side and secondary cortex on the inner side by giving off new cells on

both its sides. The layer of cells which is cut by cork cambium on the outer side ultimately becomes several

layered thick cork (bark) of trees.

Cork cells are compactly arranged dead cells and they lack intercellular spaces. Walls of cork cells are thickened

with suberin which is fat. Because of Suberin these cells are impermeable to water and gases.