Q:

Protein molecules are polymers of what substance?

A:

Quick Answer

Proteins are polymers of amino acids. Polymers are large molecules made of similar or identical subunits called monomers.

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Full Answer

Proteins are made up of approximately 20 amino acids. Each amino acid, or monomer, combines to create a protein, or the polymer. Specifically, proteins fall into the biopolymer category and make up most living organisms. Amino acids themselves are built from a carbon bonded to four different groups:

  • Hydrogen (-H)
  • Amino group (-NH2)
  • Carboxyl group (-COOH)
  • A side chain

Amino acids link via dehydration to form a peptide bond, which is also known as a polypeptide. Some proteins contain only a single polypeptide chain, while others include combinations of polypeptides.

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