Difficulty: Medium
Average Score: 77%
Entry Exam
Passage / Scenario
Which of the following is an example of a biological macromolecule?
Correct answer
B
Rationale
The correct answer is B, 'Protein.' Proteins are biological macromolecules composed of amino acid chains. They play vital roles in cellular functions, including catalyzing reactions, providing structural support, and acting as signaling molecules. Monosaccharides are simple sugars, nucleic acids are genetic materials such as DNA and RNA, and amino acids are the fundamental units that make up proteins.