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.
Protein is a complex chemical structure of carbon, nitrogen, hydrogen and oxygen. Accounting for 50% of the body's dry weight, it has been estimated that humans consist of 50,000 different proteins. From the simple blink of an eye to the flow of blood to muscles under extreme stress, proteins are everywhere.