Collenchyma tissue is composed of elongated cells with irregularly thickened walls. They provide structural support, particularly in growing shoots and leaves. ... Collenchyma cells are usually living, and have only a thick primary cell wall made up of cellulose and pectin.

Which type of tissue is collenchyma?

Collenchyma is a supporting tissue composed of more or less elongated living cells with unevenly thickened, nonlignified primary walls. It is in regions of primary growth in stems and leaves.

What is collenchyma tissue examples?

They typically occur in the growing shoots and leaves. An example of collenchyma tissue is the strands in the celery stalks. The collenchyma cells are often alive at maturity as opposed to sclerenchyma cells, which lose their protoplast at maturity. Many of the collenchyma cells have irregular cell wall thickenings.