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.
This cell wall exoskeleton provides the bacteria with several benefits. The cell wall protects the bacterium from damage by encircling it with a tough, rigid structure. This structure is also porous. Small molecules are able to freely pass through the cell wall to the membrane, but large molecules are excluded. In this way, the cell wall acts as a coarse filter.