What is the term for a long molecule consisting of many similar or identical building blocks linked by covalent bonds?

The term "polymer" specifically refers to a long molecule made up of many similar or identical subunits (referred to as monomers) that are covalently bonded together. This definition captures the essence of polymers, which can include substances like proteins, nucleic acids, and synthetic plastics. In the context of biology and chemistry, polymers can vary in complexity and function, but they are characterized by their structural arrangement and the repeated units that compose them.

Macromolecule is a more general term that encompasses not only polymers but also other large, complex molecules such as lipids and certain carbohydrates that might not consist of repeating units. While macromolecules include polymers, not all macromolecules are classified as such.

Homopolymer refers to a specific type of polymer that consists of only one kind of monomer repeated throughout the molecule. This is a narrower classification within the broader category of polymers.

The term composite typically refers to materials made from two or more constituent materials with significantly different physical or chemical properties, which, when combined, produce a material with characteristics different from the individual components. This term does not apply to the description of a long molecule linked by covalent bonds.

Therefore, the most accurate term for a long molecule made up of