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प्रश्न
Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
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उत्तर
| Parenchyma | Collenchyma | Sclerenchyma | |
| 1. |
Cell walls are relatively thin, and the cells in parenchyma tissues are loosely packed. |
The cell wall is irregularly thickened at the corners, and there is very little space between the cells. |
The cell walls are uniformly thickened, and there are no intercellular spaces. |
| 2. | The cell wall in this tissue is made up of cellulose. | Pectin and hemicellulose are the major constituents of the cell wall. | An additional layer of the cell wall, composed mainly of lignin, is found. |
| 3. | It performs the function of food storage. | It provides flexibility. | It provides strength. |
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संबंधित प्रश्न
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Study the diagram given below and then answer the question that follows:
State the function of the parts labelled 1, 2, 3 and 4.
A permanent tissue is of how many types?
Name the tissue associated with the following:
Conduction of water in the plant body.
Match the column (A) with the column (B)
| (A) | (B) | ||
| (a) | Parenchyma | (i) | Thin walled, packing cells |
| (b) | Photosynthesis | (ii) | Carbon fixation |
| (c) | Aerenchyma | (iii) | Localized thickenings |
| (d) | Collenchyma | (iv) | Buoyancy |
| (e) | Permanent tissue | (v) | Sclerenchyma |
Differentiate between meristematic and permanent tissues in plants
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