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Question
Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
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Solution
| 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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