Chemistry Macromolecules / Biochemistry PMC 2021
PMDC Verified Question 30 of 47
Protein is a polymer of ____?
A
Glucose
B
Nitrogenous base
C
Amino acids
D
Nitrogen atoms
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Amino acids
Concept:

Macromolecules are composed of repeating monomeric units. Proteins are one of the four major classes of biological macromolecules.

Formula:

$$N/A$$

Solution:

  • Proteins are complex, high-molecular-weight organic compounds.
  • They are built from chains of amino acids connected by peptide bonds. Hence, amino acids are the monomers of proteins.


Why other options are incorrect:

Glucose is the monomer of carbohydrates (like starch and cellulose). Nitrogenous bases are components of nucleotides (the monomers of nucleic acids). While proteins contain nitrogen atoms, "nitrogen atoms" themselves are not polymeric units.

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