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प्रश्न
Study the diagram given below and then answer the question that follows:
State the function of the parts labelled 1, 2, 3 and 4.
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उत्तर
1 → Sieve cells: Help in the transport of food from leaves to storage organs and other parts of the plant.
2 → Phloem parenchyma cells: Storage of starch, fat and other organic food material.
3 → Companion cells: Help in the functioning of the sieve tube cells.
4 → Sieve plate: Perforations in the sieve plates allow water and dissolved organic solutes to flow along the sieve tube.
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संबंधित प्रश्न
Name the regions in which parenchyma tissue is present.
What are tracheary elements? Describe their functions.
Explain how sieve tubes manage to be living?
What is simple tissue? Classify and explain its different types with suitable diagram.
Study the diagram given below and then answer the question that follows:
Where is this tissue likely to be found in the plant?
What is a permanent tissue?
Give the structure and function of the following:
Sclerenchyma
Give the structure and function of the following:
Collenchyma
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
