- Collenchyma is a type of supportive plant tissue that provides structural strength especially in growing parts such as leaf stalks, young stems, and petioles.
- It is composed of living cells with unevenly thickened cell walls, providing flexibility and support without stopping the growth. However, collenchyma does not participate in the conduction of water.
- Its main role is to make the plant body strong, allowing it to cope with the mechanical stress and resist bending, which is essential for non-woody plants or young, developing plant parts.
In contrast, xylem is a complex, permanent tissue in plants responsible for the transport of water and minerals from the roots to other parts of the plant.
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