If you have a well in your home, keep a close eye on the color of the water, which may tell you plenty about what might go on down under. If your well water turns an eerie blue or blue-greenish color, you have a problem related to either copper or zinc from bronze fixtures.
67 MembraneStructure andFunction Chapter Concepts 4.1 Plasma Membrane Structure and Function â¢ The plasma membrane regulates the passage ofmolecules into and out of the cell. 68â¢ The membrane contains lipids and proteins.
On the cytoplasmic side of the membrane, some membrane proteins connect to the cytoskeleton. On the exterior side of the membrane, some membrane proteins attach to the fibers of the extracellular matrix. The proteins of the plasma membrane have six major functions: 1. Transport of specific solutes into or out of cells.