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प्रश्न
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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उत्तर
1 → Sieve cell
2 → Phloem parenchyma cell
3 → Companion cell
4 → Sieve plate
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संबंधित प्रश्न
How many types of elements together make up the xylem tissue? Name them.
Distinguish between tracheids and vessels.
What are different types of tissues in plants? Describe simple tissues.
Differentiate between cells of Parenchyma and Collenchyma.
Differentiate between cells of Sclerenchyma and Parenchyma
Give the structure and function of the following:
Collenchyma
Name the tissue associated with the following:
Conduction of water in the plant body.
Why the cells of sclerenchyma and tracheids become dead?
What are sieve tubes? Explain.
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 |
