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प्रश्न
What are the functions of the stomata?
Give two functions of stomata.
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उत्तर
- They allow the exchange of gases (CO2 and O2) with the atmosphere.
- Evaporation of water from the leaf surface occurs through the stomata. Thus, the stomata help in the process of transpiration.
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
Identify the type of tissue in the bark of tree.
Give two functions of collenchyma.
What is the difference between parenchyma and collenchyma?
What are different types of tissues in plants? Describe simple tissues.
Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3 and 4.
Study the diagram given below and then answer the question that follows:
Where is this tissue likely to be found in the plant?
Give the structure and function of the following:
Phloem
The question has four answers. Choose the correct answer:
Hard lignified thick walled, long and pointed cells in a plant are
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 |
Fibers are extensively longer ranging from 20 mm to 550 mm ______.
