StellarSelective Permeability of Cell Membranes
Cell membranes are crucial for maintaining cellular homeostasis by regulating the internal environment of the cell. This regulation is achieved through selective permeability, a property that allows certain molecules to cross the membrane while restricting others. The effectiveness of selective permeability is a direct consequence of the cell membrane's structure, which is described by the Fluid Mosaic Model. This model emphasizes the dynamic nature of membranes, where lipids and proteins coexist and interact within a flexible bilayer.