Question
Explain the types of simple permanent tissues in plants.
| Name of Tissue | Parenchyma | Collenchyma | Sclerenchyma |
| Structure of cells | Living cells with thin cell wall and intercellular spaces. | Elongated living cells with thickened cell wall at corners due to cellulose and pectin. | Dead and fibrous cells with tapering ends, cell wall contains lignin. |
| Location | All parts like roots, stem, leaves, flowers and seeds. | At the base of leaf petiole, branches and stem | Stem, veins of leaves, hard coats of seeds, outer covering of coconut. |
| Functions | Support, storage of food and filling vacant spaces. | Support and flexibility to various parts. | Give strength and rigidity to parts of the plants. |
| Sub types | Chlorenchyma: Leaves, perform photosynthesis. Aerenchyma: Helps aquatic plants, leaves and stem to float. |
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