Texas A&M University (TAMU) BIOL111 Introductory Biology I Exam 1 Practice Exam

Proteins, carbohydrates, and nucleic acids are all types of macromolecules that are classified as polymers. A polymer is a large molecule made up of repeating subunits, known as monomers, which are linked together through covalent bonds.

Proteins are made from amino acids, which are the monomers that combine to form the polymer chains of proteins through peptide bonds.

Carbohydrates are primarily constructed from simple sugars (monosaccharides), such as glucose, which link together to form polysaccharides, a type of carbohydrate polymer.

Nucleic acids, such as DNA and RNA, are composed of nucleotide monomers that join together to form long chains, creating the complex structures necessary for genetic information storage and transmission.

Thus, stating that proteins, carbohydrates, and nucleic acids are made from polymers accurately reflects their structural nature, as they are all formed from the assembly of smaller repeating units into larger, functional macromolecules.