Which statement about polymers is true?

Which statement about polymers is true?

• A. Polymers are formed from a single monomer repeated
• B. Polymers are not related to monomers
• C. Polymers are composed of amino acids
• D. Polymers are many monomers joined by chains

Answer: (D)

Polymers are large molecules built by linking many monomer units into a chain. This idea captures the general nature of polymers: they arise from polymerization, where individual units bond covalently to form long, repeating structures. The monomers can be the same (as in polyethylene) or different (as in proteins, which use many kinds of amino acids in various sequences). Because of this, the statement describing polymers as many monomers joined by chains is the best description overall. Other options misrepresent polymers in broader ways: some polymers aren’t made from a single repeating monomer, and polymers are fundamentally related to monomers since they’re built from them. While proteins are polymers of amino acids, that’s true for proteins specifically, not for all polymers.

Polymers are large molecules built by linking many monomer units into a chain. This idea captures the general nature of polymers: they arise from polymerization, where individual units bond covalently to form long, repeating structures. The monomers can be the same (as in polyethylene) or different (as in proteins, which use many kinds of amino acids in various sequences). Because of this, the statement describing polymers as many monomers joined by chains is the best description overall. Other options misrepresent polymers in broader ways: some polymers aren’t made from a single repeating monomer, and polymers are fundamentally related to monomers since they’re built from them. While proteins are polymers of amino acids, that’s true for proteins specifically, not for all polymers.