What is Cell Wall and its Function
Cell Wall and its Function
Location:
It is outer most boundary of plant cell. It is absent in animals cell.
Thickness:
It may be thick as outer wall of trachieds or as parenchyma tissues.
Tissues:
- i) Parenchyma tissues are composed to thin wall and its function is storage.
- ii) Cotenchyma tissues are slightly thick and their function is conduction.
iii) Sclerenchyma tissues are thick wall and their function is protection.
Composition:
Its composition is different in different plants. Majority composed of cellulose (dead cells). In fungi it is composed of chitin.
Types of cell wall:
- i) Primary cell wall is a thin wall which form first whorl.
- ii) Secondary cell wall is formed by deposition of many primary cell walls. It is thick.
Functions of cell wall:
- i) It provides protection to the cell.
- ii) It gives shape to the cell.
iii) It provides support to the cell.
- iv) It provides rigidity to the cell.
Nature of cell wall:
Cell wall is permeable in nature because it allows all the materials to pass through.
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