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प्रश्न
What are tracheary elements? Describe their functions.
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उत्तर
Tracheary elements are the elongated cells of xylem tissue. They are of two types:
(i) Vessels: These are long tube-like structures that are formed by a row of cells placed end to end. The transverse walls between the vessel elements are completely dissolved forming water pipes.
(ii) Tracheids: These are elongated cells with tapering ends. Since their end walls have closed ends, water has to pass from cell to cell via pits.
Both these elements are involved in the conduction of water.
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संबंधित प्रश्न
Why are xylem and phloem called complex tissues?
Draw a well labelled diagram of xylem.
Give two functions of collenchyma.
Differentiate between cells of Parenchyma and Collenchyma.
Differentiate between cells of Meristematic tissue and Permanent tissue
Define the following:
Permanent tissue
Give the structure and function of the following:
Phloem
Write 'True or False' for the following statement:
A vascular bundle conducts prepared food only.
The question has four answers. Choose the correct answer:
Collenchymatous hypodermis is found in
In which of the following pairs of parts of a flowering plant is epidermis absent?
