Which term describes a compound made up of large molecules consisting of linked repeated simple monomers?

The term that accurately describes a compound made up of large molecules formed from linked repeated simple monomers is "polymer." Polymers are macromolecules that are created through a process called polymerization, where small units known as monomers chemically bond together in long chains. This structure gives polymers distinct physical and chemical properties that differ vastly from their individual monomer components.

For example, common polymers include plastics like polyethylene and natural substances such as DNA and proteins. Their unique properties make them valuable in various applications, from industrial uses to biological functions.

The other terms do not correctly define this concept. A composite refers to a material made from two or more constituent materials with significantly different physical or chemical properties, while a monomer refers to the individual building blocks that combine to form polymers. Synthetic materials are made through chemical processes and can be composed of polymers, but the term does not specifically denote the structure characterized by repeated linked monomers.