What Is The Definition Of The Cell Wall. What is the function of a cell wall? The hard outer covering, consisting mainly of cellulose, that surrounds a plant cell 2.
Plant cell walls perform many functions.
A cell wall is a tough, flexible and sometimes fairly rigid layer surrounding a cell, located external to the cell membrane, which provides the cell with structural support, protection, and acts as a filtering mechanism. The cell wall (which is not present on animal cells) is strong, so stays the same, but the rest of the cell shrinks away from the cell wall. Eukaryotic cells possess a definite nucleus along with a distinct nuclear membrane. (cytology) a thick, fairly rigid, layer formed around individual cells of bacteria, archaea, fungi, plants, and algae (but not animals and other protists which generally have cell membranes without cell walls).