Question

What is collenchmya what are they generally present and what are its importance?

Answer 1

Collenchyma cells are elongated cells with irregularly thick cell walls that provide support and structure. Their thick cell walls are composed of the compounds cellulose and pectin. These cells are often found under the epidermis, or the outer layer of cells in young stems and in leaf veins.
Collenchyma cells provide structural support, protecting the plant by serving as an inner framework, much like bones do for humans and other animals.
Let me know if you want their types also.