Which statement best defines a polymer?

Which statement best defines a polymer?

• A. A molecule that can bond in long chains
• B. Many monomers bonded together
• C. A single sugar molecule
• D. A lipid molecule

Answer: (B)

Polymers are large molecules built from many repeating subunits called monomers joined together. This repeating sequence is what turns individual monomers into one long, connected chain, giving polymers their characteristic size and properties. So the statement that best defines a polymer is that it consists of many monomers bonded together. The other options miss an essential piece: one is too vague about repeating units, another describes a single sugar molecule, and another refers to a lipid, which isn’t made from repeating monomer units in the same way.

Polymers are large molecules built from many repeating subunits called monomers joined together. This repeating sequence is what turns individual monomers into one long, connected chain, giving polymers their characteristic size and properties. So the statement that best defines a polymer is that it consists of many monomers bonded together. The other options miss an essential piece: one is too vague about repeating units, another describes a single sugar molecule, and another refers to a lipid, which isn’t made from repeating monomer units in the same way.