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 acts to protect the cell mechanically and chemically from its environment, and is an additional layer of protection to the cell membrane. Different types of cell have cell walls made up of different materials; plant cell walls are primarily made up of cellulose, fungi cell walls are made up of chitin and bacteria cell walls are made up of peptidoglycan.