Download article as a PDF. Civil rights are the rights of individuals to receive equal treatment (and to be free from unfair treatment or discrimination) in a number of settings -- including education, employment, housing, and more -- and based on certain legally-protected characteristics.ownload article as a PDF. Civil rights are the rights of individuals to receive equal treatment (and to be free from unfair treatment or discrimination) in a number of settings -- including education, employment, housing, and more -- and based on certain legally-protected characteristics.
Cell wall. Definition. noun, plural: cell walls. A membrane of the cell that forms external to the cell membrane whose main role is to give cells rigidity, strength and protection against mechanical stress. It is found in cells of plants, bacteria, archaea, fungi, and algae. Animals and most protists do not have cell walls. Supplement.
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 strong fibers of the carbohydrate polymer cellulose. Cellulose is the major component of cotton fiber and wood and is used in paper production. Plant Cell Wall Structure. The plant cell wall is multi-layered and consists of up to three sections.