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.
Proteins are worker molecules that are necessary for virtually every activity in your body. They circulate in your blood, seep from your tissues, and grow in long strands out of your head. Proteins are also the key components of biological materials ranging from silk fibers to elk antlers.