CBSE Class 9 Answered
Collenchyma is responsible for flexibility in plants. Difference to other permanent tissues are:
Parenchyma |
Collenchyma |
Sclerenchyma |
It consists of relatively unspecialized cells with thin walls. The cells of this tissue are living. |
The cells of this tissue are living, elongated and irregularly thickened at the corners. |
The cells of this tissue are dead. They are long and narrow as the walls are thickened due to lignin. |
The cells in this tissue contain large intercellular spaces. |
There is very little intercellular space. |
The walls of cells are so thick that there is no internal space inside the cell and between the cells. |
It provides support to plants and also stores food. |
It allows easy bending in various parts of a plant (leaf, stem) without breaking. It also provides mechanical support to plants. |
It provides strength to the plant parts. |