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.
A selectively permeable membrane, which encloses the cell. Also known as a cell membrane. - The plasma membrane is called a Phospholipid bilayer because the structure is composed of TWO layers of phospholipids. List six functions of the plasma membrane.