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प्रश्न
Give the structure and function of the following:
Crystal
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उत्तर
Crystal
Structure - Three common types of crystals are found in plants: druses (spherical crystal aggregates), raphides (long pointed needles found in bundles), and prisms. Despite the variety of crystal structures found throughout the plant cells, all crystals contain calcium oxalate.
Function - Crystals either protect plants from animals or they may provide extra support.
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संबंधित प्रश्न
What are the functions of the stomata?
Draw a well labelled diagram of parenchyma and collenchyma.
Write a short note on sclerenchyma.
What is simple tissue? Classify and explain its different types with suitable diagram.
What do you know about complex tissue? Classify and explain its different types in plants with suitable diagrams.
Differentiate between cells of Meristematic tissue and Permanent tissue
Differentiate between cells of Sclerenchyma and Parenchyma
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 |
Name any two simple and two complex permanent tissues in plants.
Name the two types of sclerenchyma cells.
