A large molecule formed by joining smaller units.

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Multiple Choice

A large molecule formed by joining smaller units.

Explanation:
A large molecule formed by joining smaller units describes a polymer. Polymers are created when many small subunits, called monomers, link together through covalent bonds in polymerization, building long chains or networks. This category includes proteins from amino acids, polysaccharides from sugars, and nucleic acids from nucleotides. The statement is describing the general idea of polymer formation, not a specific type of polymer, so while nucleic acids are polymers, naming them specifically doesn’t capture the broader concept. A macromolecule is also a large molecule, but polymer is the more precise term for a substance formed by linking repeating subunits.

A large molecule formed by joining smaller units describes a polymer. Polymers are created when many small subunits, called monomers, link together through covalent bonds in polymerization, building long chains or networks. This category includes proteins from amino acids, polysaccharides from sugars, and nucleic acids from nucleotides. The statement is describing the general idea of polymer formation, not a specific type of polymer, so while nucleic acids are polymers, naming them specifically doesn’t capture the broader concept. A macromolecule is also a large molecule, but polymer is the more precise term for a substance formed by linking repeating subunits.

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