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प्रश्न
What are the functions of the stomata?
Give two functions of stomata.
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
Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
Draw a well labelled diagram of xylem.
What is the differences between collenchyma and sclerenchyma?
What are the functions of phloem?
What are different types of tissues in plants? Describe simple tissues.
Give the structure and function of the following:
Crystal
Write 'True or False' for the following statement:
A tracheid is longer than a vessel.
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 the two types of sclerenchyma cells.
Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is ______.
