According to the fluid-mosaic model of a cell membrane, the main component of a membrane is

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The fluid-mosaic model of a cell membrane states that the membrane is composed primarily of a lipid bilayer, which consists of two layers of phospholipid molecules. This lipid bilayer serves as the main barrier for the cell, controlling the movement of molecules in and out of the cell. While proteins and other molecules are also present in the membrane, the lipid bilayer is the primary structural component.

According to the Fluid-Mosaic Model of a Cell Membrane, the Main