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प्रश्न
Which structure protects the plant body against the invasion of parasites?
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उत्तर
Epidermis is a layer of parenchymatous cells that forms the outermost covering of the plant body. Epidermis consists of compactly arranged cells without any intercellular spaces. On the aerial plant parts, it secretes a thick, waxy, water-resistant layer called cuticle on its outer surface. These features .make the epidermis protective against loss of water, mechanical injury, and the invasion of parasites.
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संबंधित प्रश्न
The fibres consists of ______.
Parenchyma, collenchyma, Sclerenchyma are______ type of tissue.
What are intercalary meristems? How do they differ from other meristems?
Read the following sentences and identify the correctly matched sentences.
- In exarch condition, the protoxylem lies outside of metaxylem.
- In endarch condition, the protoxylem lie towords the centre.
- In centarch condition, metaxylem lies in the middle of the protoxylem.
- In mesarch condition, protoxylem lies in the middle of the metaxylem.
Nervous tissue is not found in
Define the process of differentiation
A meristematic tissue consists of ______.
______ is derived from the ground meristem.
Draw a shoot apex and label the meristem’s parts.
Which one of the following cell types always divides by anticlinal cell division?
