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प्रश्न
Write the functions of parenchyma, collencyma and sclerenchyma.
उत्तर
Functions of parenchyma:
(i) The main function of parenchyma is to store and assimilate food. Hence, they are referred to as food storage tissues.
(ii) It serves as a packing tissue to fill the spaces between other tissues and maintain the shape and firmness of the plant.
(iii) It stores waste products of plants.
Functions of collenchyma:
(i) It is a mechanical tissue and provides mechanical support and elasticity to the stems of dicot plants.
(ii) If its cells possess chloroplast, then it is involved in manufacturing sugar and starch.
(iii) It provides tensile strength and flexibility to the plant body.
Function of sclerenchyma:
(i) It provides mechanical strength to the plant.
(ii) It is involved in providing protection and strength to the plant body.
(iii) It makes the plant body rigid, flexible, and elastic.
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संबंधित प्रश्न
Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
How does the cork act as a protective tissue?
What is the difference between parenchyma and collenchyma?
What are different types of tissues in plants? Describe simple tissues.
What is simple tissue? Classify and explain its different types with suitable diagram.
Differentiate between:
Collenchyma and Sclerenchyma
Write 'True or False' for the following statement:
Sclerenchyma cells have intercellular spaces.
The question has four answers. Choose the correct answer:
A component of xylem is
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 |
Differentiate fibers from sclereids.
