Collenchyma is a simple, permanent tissue typically found in the shoots and leaves of plants. Collenchyma cells are thin-walled but the corners of the cell wall are thickened with cellulose. This tissue gives strength, particularly in growing shoots and leaves due to the thickened corners. The cells are tightly packed and have fewer inter-cellular spaces.
|Cells are spherical, oval or polygonal in shape with no intercellular spaces.||This allows for close packing to provide structural support.|
|Corners of cell wall are thickened, with cellulose and pectin deposits.||Provides mechanical strength.|
|Cells are thin-walled on most sides.||Provides flexibility, allowing plant to bend in the wind.|
Video: Simple Permanent Tissues
Learn more about permanent simple tissues in this optional video below.