A stainless steel countertop. A countertop (also counter top, counter, benchtop, (British English) worktop, or (Australian English) kitchen bench) is a horizontal work surface in kitchens or other food preparation areas, bathrooms or lavatories, and workrooms in general. It is frequently installed upon and supported by cabinets.
Proteins, polysaccharides and nucleic acids are polymeric organic molecules built out of a very large number of repeating sub-units. The nucleic acids, double-helical DNA and single-stranded RNA are built
1 Monomer: A small molecule that bonds to other molecules to form a polymer. 2  Nucleic Acids: A group of organic macromolecules that are made of nucleotides. 3  Contain hydrogen, oxygen, carbon, and phosphorus. 4  Examples are RNA, DNA, and ATP. Polymer: A large molecule made up of many repeating structural units called monomers. 2  Polymerization: Process that forms a large molecule (polymer) from repeating subunit molecules (monomers). 3  Polypeptide: A chain of up to 100 amino acids.