Problem: Which of the following statements about peptide bonds are true?A. Peptide bonds are ester linkages.B. Peptides are polymers of amino acids.C. Peptide bond formation is a hydrolysis reaction.D. A tripeptide contains three amino acid residues.E. Peptide bonds form from nucleophilic attack by an αcarboxyl carbon atom on an electron pair of an α-amino nitrogen atom of another amino acid.

FREE Expert Solution

A. Peptide bonds are ester linkages. → False; amide linkage

B. Peptides are polymers of amino acids. → True; amino acids → peptides → proteins

C. Peptide bond formation is a hydrolysis reaction.→ False; dehydration reaction

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Problem Details

Which of the following statements about peptide bonds are true?

A. Peptide bonds are ester linkages.

B. Peptides are polymers of amino acids.

C. Peptide bond formation is a hydrolysis reaction.

D. A tripeptide contains three amino acid residues.

E. Peptide bonds form from nucleophilic attack by an αcarboxyl carbon atom on an electron pair of an α-amino nitrogen atom of another amino acid.

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