What type of cells compose collenchyma tissues?

Collenchyma tissue is primarily composed of living cells that have a unique structure which allows them to be both flexible and supportive. These cells typically have unevenly thickened primary cell walls, providing strength while still permitting growth and movement, particularly in areas of new growth or in young stems and leaves. The flexibility of collenchyma cells plays a significant role in allowing plants to withstand mechanical stress and bending without breaking, making them especially important in supporting growing organs of the plant.

The characteristics of collenchyma tissue make it distinct from other plant tissues, such as sclerenchyma, which is made up of dead cells with thickened walls that provide rigidity. Because collenchyma cells are still alive, they are able to sustain metabolic activity, which is essential for the growing regions of the plant. This functional aspect is critical for the overall health and adaptability of the plant as it grows and responds to environmental conditions.