Biology
State the differences between parenchyma, collenchyma and sclerenchyma tissues with diagrams.
Tissues
ICSE
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Answer
| Sl. No. | Parenchyma | Collenchyma | Sclerenchyma |
|---|---|---|---|
| 1. | Cells are thin walled | Cells are thick walled | Cells have walls thickened with lignin |
| 2. | Cells are living | Cells are living | Cells are dead |
| 3. | Cells are oval, spherical or cylindrical in shape | cells are circular, oval or polygonal | Cells are elongated and have tapering ends |
| 4. | Present in all parts of plant body | Found below epidermis in young stems and petioles | Found in stems and veins of leaves |
| 5. | Intercellular spaces are present | Intercellular spaces are generally absent. | Intercellular spaces are absent |
| 6. | Participate in photosynthesis and store food | Provide structural support to growing stems and leaves. | Provide mechanical strength to stem. |
The diagrams are shown below:
Parenchyma
Collenchyma
Sclerenchyma
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