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प्रश्न
What is the role of epidermis in plants?
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उत्तर
The epidermis is present on the outer surface of the entire plant body. The cells of the epidermal tissue form a continuous layer without any intercellular space. It performs the following important functions:
- It is a protective tissue of the plant body.
- It protects the plant from mechanical injury, parasites and cold or heat.
- It allows the exchange of gases through stomata.
- Greatly increasing the absorptive surface areas for the absorption of water and nutrients.
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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 parenchyma and collenchyma.
Distinguish between xylem and phloem.
Define the following:
Permanent tissue
Give the structure and function of the following:
Phloem
Write 'True or False' for the following statement:
Sclerenchyma cells have intercellular spaces.
Why the cells of sclerenchyma and tracheids become dead?
Name the two types of sclerenchyma cells.
The cells or tissues of plants which have lost the power of division are called
Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is ______.
