Question

Write a short note on sclerenchyma.

Answer 1

Sclerenchyma cells are dead cells devoid of protoplasm. Its cell walls are thick and lignified. There are no intercellular spaces between the cells. Middle lamella exists between two sclerenchymatous cells. They are found in stems, roots, veins of leaves, hard covering of seeds, and nuts. Cells of collenchyma are of two types: 
(a) fibres and
(b) sclereids (grit cells or stone cells).
The main function of sclerenchyma is to provide mechanical support and protection to the plant.