Which biomolecule is composed of repeating amino acid units linked by peptide bonds?
Difficulty: Easy
About this MCQ
Easy MCAT item. Correct choice: A. Protein.
- A. Protein ✓
- B. Carbohydrate
Why not B: “Carbohydrate” is not Protein.
- C. Lipid
Why not C: “Lipid” is not Protein.
- D. Nucleic acid
Why not D: “Nucleic acid” is not Protein.
Correct answer
A. Protein
Explanation
Protein is the term that matches “Which biomolecule is composed of repeating amino acid units linked by peptide bonds” (option A). Option B (Carbohydrate) is a different value from Protein. Option C (Lipid) is a different value from Protein. Option D (Nucleic acid) is a different value from Protein. Keep Protein as the MCAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: American Exams, MCAT, Biochemistry
Submitted by: MCQsHub Editorial
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