Question

How does cork act as a protective tissue?

Answer 1

Cork:

1. Cork refers to dead cells that are present at the periphery of roots and stems.
2. It protects the inner parts from mechanical damage and predation.

Cork as protective tissue:

1. Cork cells form the outer bark layer of the tree.
2. Their cell walls contain a waxy substance, suberin.
3. Due to the suberin coating, it prevents the passage of water and gases.
4. It also protects the plant from sustaining any mechanical injury or infection.
5. It prevents the entry of pathogens.