Which carbon of amino acids bond to nitrogen of another in peptide linkage?
Correct answer: D. Carbonyl carbon
- A. α-Carbon
- B. ẞ-Carbon
- C. Side chain carbon
- D. Carbonyl carbon
Explanation
This carbon atom is part of the carbonyl group (C=O) at the carboxyl end of an amino acid. During peptide bond formation, the carbonyl carbon of one amino acid reacts with the amino group (-NH2) of another amino acid, resulting in the formation of a peptide bond.
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