The tissue which is composed of mature and differentiated cells that have already undergone definite growth and have assumed definite size, shape and function is known as permanent tissue. Permanent tissue acquires a specific role and loses the ability of cell division.

Lateral meristem helps in increasing the girth of a plant.

Sclerenchyma has dead cells.

Suberin is the chemical secreted by cork cells that makes them impervious to gases and water.

Xylem vessels and tracheids are tubular structures. This allows them to transport water and minerals vertically.

Meristematic tissues exhibit cell division.

Cambium is a lateral meristematic tissue.

Sclerenchymatous tissue is present in the husk of coconut, which comprises of dead cells with thickened cell walls due to deposition of lignin and hemicellulose. This makes husk of coconut hard and stiff. That is why it is difficult to remove.

1 – (d), 2 – (c), 3 – (b), 4 – (a)

Tracheids - Transport minerals Companion cells - Dense cytoplasm Sieve tubes - Transport metabolic products Xylem - Complex permanent tissue

Intercalary meristem is present at the base of the leaves or internodes.