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प्रश्न
Differentiate between meristematic and permanent tissues in plants
फरक स्पष्ट करा
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उत्तर
| Meristematic tissue | Permanent tissue | |
| (i) | Cells of this tissue divide throughout their life. | Cells of this tissue lose the ability to divide to take up specific functions. |
| (ii) | Meristematic tissues are located at specific regions of the plant e.g. apical meristem is located in apices (tips) of roots and shoots, etc. | Permanent tissues are distributed throughout the plant body. |
| (iii) | Cells of this tissue are very active, have dense cytoplasm, thin walls, and prominent nuclei. They lack vacuoles. | Cells of this tissue are vacuolated, vary in shape and size. Their cell walls may be thin or thick. |
| (iv) | The cell wall of the cells is cellulosic. | Cells walls may be made up of cellulose or lignin or suberin. |
| (v) | Cells of this tissue are living. | Cells of this tissue may be living (parenchyma) or dead(sclerenchyma). |
| (vi) | Intercellular spaces are absent in cells. | Intercellular spaces may be present or absent. |
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संबंधित प्रश्न
Why are xylem and phloem called complex tissues?
Explain different types of elements present in phloem.
Write the functions of parenchyma, collencyma and sclerenchyma.
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Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3 and 4.
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Parenchyma and collenchyma
Name the tissue associated with the following:
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Write 'True or False' for the following statement:
A tracheid is longer than a vessel.
The question has four answers. Choose the correct answer:
Collenchymatous hypodermis is found in
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 |
