Question

question 16 of 41
what is a polymer?
○ a small subunit that can react with other similar molecules
○ a complex composed of many different carbohydrate molecules
○ a molecule formed by the bonding of three identical molecules
○ a large molecule composed of many repeated subunits

Explanation:

A polymer is defined as a large molecule made by linking many identical or similar small subunits (monomers) in a repeated chain. The correct option matches this definition, while others are incorrect: the first describes a monomer, the second incorrectly specifies "different carbohydrate molecules" (polymers can be non-carbohydrate and use identical subunits), and the third limits to three subunits (polymers require many subunits).

Answer:

a large molecule composed of many repeated subunits