The cell wall is the rigid, semi-permeable protective layer in some cell types. This outer covering is positioned next to the cell membrane (plasma membrane) in most plant cells, fungi, bacteria, algae, and some archaea. Animal cells however, do not have a cell wall. The cell wall conducts many important functions in a cell including protection, structure, and support. Cell wall composition varies depending on the organism.In plants, the cell wall is composed mainly of the carbohydrate polymer cellulose. Cellulose is the major component of cotton fiber and wood and is used in paper production.
A major role of the cell wall is to form a framework for the cell to prevent over expansion. Cellulose fibers, structural proteins, and other polysaccharides help to maintain the shape and form of the cell. Additional functions of the cell wall include support, protection and storage.
Citation: Bailey, Regina. "Cell Wall Structure And Function". About.com Education. N.p., 2016. Web. 29 Nov. 2016.
Enjoyed reading your blog. Can you explain how polysaccharides maintain the shape and form of the cell?
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