The cell wall is the tough, usually flexible but sometimes fairly rigid layer that surrounds some types of cells. It is located outside the cell membreance and provides these cells with structural support and protection, and also acts as a filtering mechanism. A major function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell. They are found in plants, bacteria, fungi, algae, and some archaea. Animals and protozoa do not have cell walls.
The materials in a cell wall vary between species, and in plants and fungi also differ between cell types and developmental stages. In plants, the strongest component of the complex cell wall is a carbohydrate called cellulose, which is a polymer of glucose. In bacteria, peptidoglycan forms the cell wall. Archaean cell walls have various compositions, and may be formed of glycoprotein S-layers, pseudopeptidoglycan, or polysaccharides. Fungi possess cell walls made of the glucosamine polymer chitin, and algae typically possess walls made of glycoproteins and polysaccharides. Unusually, diatoms have a cell wall composed of silicic acid. Often, other accessory molecules are found anchored to the cell wall.
A cell wall is only found in plant cells. It is a rigid structure that gives support to a cell.
functions of cell wall
The cell wall supports and protects the plant cell.
Cell specialization
The cell wall.But it is not only found in plants, both bacteria and fungi have cell walls too.
For plant cells, there is a cell wall outside of the cell's membrane. Animal cells do not have walls, so there is no structure outside of the cell membrane.
A cell wall protects the cell.
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The cell wall supports and protects the plant cell.
Cell specialization
cell wall
The cell wall.But it is not only found in plants, both bacteria and fungi have cell walls too.
There is no cell wall in a animal cell but there is a cell wall in the plant cell.
the cell wall
For plant cells, there is a cell wall outside of the cell's membrane. Animal cells do not have walls, so there is no structure outside of the cell membrane.
The Cell wall. It supports the cell and protects it from anything that can damage the cell.
An animal cell does not have a cell wall.
Cell wall made out of cellulose is the cell wall of a plant. A fungi has a cell wall composed of chitin and a bacteria has a cell wall composed of glycoprotein.
the cell wall protects the cell.