Describe how the structure of the cytoplasmic membrane relates to its function o

The structure and function of the cytoplasmic membrane are explained in the fluid mosaic model. The cytoplasmic membranes of most cells are composed of phospholipids, which create a semipermeable barrier to the cell's outer environment. The only molecules that can easily cross the membrane are small, lipid soluble molecules. Other types of molecules must use the wide variety of transport proteins embedded in the phospholipid bilayer to cross the membrane. In this way, the cell can control the concentration of both its nutrients and its waste products. The cytoplasmic membrane can also be used for energy production and for photosynthesis in prokaryotic cells.