Question

how does the cark act as a protective issue class 9 bio ch tissue​

Answer 1

Answer:

it present on the outer side and protecting inner tissue from outer environment

cork is rigid also due to lignin present in their cellwall

Answer 2

Cork acts as a protective tissue because its cells are dead and compactly arranged without intercellular spaces. They have deposition of suberin on the walls that make them impervious to gases and water.

    OR

Suberin is a waterproofing waxy substance which restricts the water movement. Presence of suberin in dead cells of cork and absence of intercellular spaces makes the cells impermeable to water and gases thereby protecting the underlying tissues from desiccation, mechanical injury and pathogenic infection.