Cultured marble is less expensive and is made from real chips of natural marble embedded in plastic. It's available in sheet form and in standard counter dimensions of 19 and 22 inches deep. Cultured marble comes with or without a wash basin molded into it, for $50 to $80 per running foot, installed.
The Chemistry of Biology: Proteins. Proteins. Proteins are organic compounds that contain the element nitrogen as well as carbon, hydrogen, and oxygen. Proteins are the most diverse group of biologically important substances and are often considered to be the central compound necessary for life.
Antibodies Defined. Antibodies are proteins that are produced by the immune system to help stop harm from occurring. They are also called immunoglobulins. When an intruder, such as a virus, bacteria, or other chemical, enters the body, the immune system springs into action.ntibodies Defined. Antibodies are proteins that are produced by the immune system to help stop harm from occurring. They are also called immunoglobulins. When an intruder, such as a virus, bacteria, or other chemical, enters the body, the immune system springs into action.