Rabu, 27 Juli 2011

Biology : Cell Wall

Biology : Cell Wall

Cell wall is a structure outside the plasma membrane that limits the space for cells to swell. Cell wall is a hallmark owned plants, bacteria, fungi (mushrooms), and algae, although the structure of different compilers and completeness. Cell wall is thin, layered, and flexible in its infancy. The base layer is formed during cell division is mainly pectin, a substance that makes jelly jell. This layer of glue adjacent cells. After cell division, each new parts forming the inner wall of cellulose fibers.

This wall is stretched during the cell to grow and become thick and stiff after the plants mature. Cell wall causes the cell can not move and develop freely, like animal cells. This positive result because the cell walls can provide support, protection and filter (filter) for the structure and function of the cell itself. Cell wall prevents excess water that enters the cell. peptidoglycan (a glycoprotein) make up the cell wall. Fungi have cell walls composed of chitin. Meanwhile, the algae cell walls composed of glycoproteins, pectin, and simple saccharides (sugars). Cell walls are made of many different components, depending on the type of organisms.
what is cell wall, cell wall, biology
In plants, cell walls largely formed by the polymer of carbohydrates (pectin, cellulose, hemicellulose, and lignin as an important constituent). In bacteria, the beginning stages of bending. The base layer is formed during cell division is mainly pectin, a substance that makes jelly jell. This layer of glue adjacent cells. After cell division, each new parts forming the inner wall of cellulose fibers.

This wall is stretched during the cell to grow and become thick and stiff after the plants mature. In the cell wall there are parts that are not thickened, the sections called nodes. Through this node occurs between the cytoplasmic connection between one another, called plasmodesmata. Plasmodesmata form panhandle plasma, which serve as door entry and exit of substances. Most of the content of the cell is water. Water pressure or the cell contents against the cell wall is called turgor pressure. Cell wall and vacuoles play a role in cell turgiditas.

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cell wall, what is the cell wall, cell wall function, uses the cell wall, cell wall drawings, the benefits of cell wall

Biology : Cell Wall

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