Biology 1202B Chapter Notes - Chapter 5: Fluid Mosaic Model, Nuclear Membrane, Electron Transport Chain
26 Mar 2017
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5. 1 an overview of the structure of membranes. The development of the plasma membrane is one of the key elements of evolution. Plasma membrane the outer limit of the cytoplasm responsible for the regulation of substances moving into and out of the cells. (ex. It essentially controls the intake of nutrients and elimination of cell waste: 5. 1a a membrane consists of proteins in a fluid of lipid molecules. The structure of a membrane is contingent on the fluid mosaic model. Fluid mosaic model a model proposing that the membrane consists of a fluid phospholipid bilayer in which proteins are embedded and float freely. In the fluid mosaic model, integral membrane proteins are hanging separately in the fluid lipid bilayer. The peripheral proteins are connected to the integral membrane proteins on the cytoplasmic portion of the membrane. The carbohydrate groups face the outside of the cell.
