It is composed of a lipid bilayer with proteins embedded in it. According to this model, the cell membrane is considered as a liquid having two surfaces. The structure of the cell membrane is described by the fluid mosaic model, a universally accepted model of the plasma membrane. In this article, we will discuss the structure and composition of the cell membrane as well as its functions. Similarly, nothing can enter the cell unless it is permeable through the cell membrane. Everything that is contained within the cell is not allowed to leave it unless allowed by the plasma membrane. However, in plants, bacteria, and fungi, it is surrounded by a thick cell wall. It is the outermost part of the cell in animals. In both unicellular and multicellular organisms, the cells are kept separated from each other and surroundings by a barrier called plasma membrane or cell membrane.Ĭell membrane, also called the plasma membrane, is a physical barrier between a cell and the surrounding environment. Some living organisms are made up of only one cell and are called unicellular, while the rest are made up of many cells called multicellular organisms. They are the building blocks of all organisms. Which substances can easily cross cell membranes?Ĭells are the basic units of life that are capable of carrying out all the processes of life.What are the functions of the cell membrane?.Cell membrane is Involved in Cell to Cell recognition. ![]() ![]() Cell membrane is necessary for Cell Signalling.
0 Comments
Leave a Reply. |