Question

Name the tissue responsible for flexibility in plants ? How would you differenciate it from other permanent tissue.

Answer 1

Collenchyma (a permanent tissue) is responsible for flexibility in plants.

We can differentiate from other by following:

Parenchyma:

i) It is oval or spherical in shape.

ii) Cell wall is thin.

iii) Inter-cellular space is present.

iv) It is a living cell.

Collenchyma:

i) Pentagonal or hexagonal in shape.

ii) Cell walls are thickened at the corners.

iii) Inter-cellular space is less due to the thickening.

iv) It is a living cell.

Sclerenchyma:

i) Elongated or irregular in shape.

ii) Cell walls are highly thickened due to the deposition of additional substance called Lignin.

iii) Inter-cellular space is absent.

iv) It is a dead cell.