What is the function of permanent tissue?
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Explanation:
The permanent tissue in plants mainly helps in providing support, protection as well as in photosynthesis and conduction of water, minerals, and nutrients. Permanent tissue cells may be living or dead.
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Answer:
DEFINATION :-
The tissues that are completely grown and have lost the ability of division are known as permanent tissues. The meristematic tissues divide and differentiate to form the permanent tissues.
Types of Permanent Tissue :-
- Simple Permanent Tissue
- Complex permanent Tissue
1) Simple permanent tissue is further classified into three types:
- Parenchyma
- Collenchyma
- Sclerenchyma
✯ FUNCTIONS OF PERMANENT TISSUES :-
1). Parenchyma
- The cells have an oval or round shape.
- The cell wall is made up of hemicellulose or cellulose.
- The cell is thin-walled.
- The cells have vacuoles and very small nucleus.
- It is found in all parts of the plant.
- The protoplasm is living and dense.
2). Collenchyma
- Cells are long and thick-walled.
- The cell wall is made up of cellulose and pectin.
- It is the only tissue with the highest refractive index due to the presence of pectin.
- It is found in the epidermis and the vascular bundle of dicot leaf.
- The amount of chloroplast is less in the cells.
- The cells have no intercellular spaces.
3). Sclerenchyma
- These are dead tissues, very hard and rigid in texture.
- Cells are thick-walled with various size and shapes.
- These provide mechanical support and rigidity to the plant.
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