Question

Protein is a polymer of _______.

• A. Amino acids
• B. Lipids
• C. Nucleic acids
• D. Carbohydrates

Answer 1

The Correct Option is A

The correct answer is (1) Amino acids.

Proteins are polymers made up of amino acids. The building blocks of proteins are amino acids, which are linked together by peptide bonds to form long chains known as polypeptides. These polypeptides fold into specific three-dimensional structures, forming functional proteins.

Let’s review the other options:

(2) Lipids: Lipids are not polymers of amino acids; they are a diverse group of hydrophobic molecules that include fats, oils, and phospholipids.

(3) Nucleic acids: Nucleic acids (DNA and RNA) are polymers of nucleotides, not amino acids. Nucleotides are the building blocks of nucleic acids.

(4) Carbohydrates: Carbohydrates are polymers of monosaccharides, not amino acids. Examples include starch and cellulose.

Thus, the correct answer is (1) Amino acids, as proteins are made up of chains of amino acids.

Answer 2

Proteins are composed of long chains of amino acids linked together by peptide bonds, making them essential macromolecules that play a wide range of roles in the body, including as enzymes, structural components, and signaling molecules.