Question

Amino acids in a protein molecule, are linked by a peptide bond. Which of the following correctly shows the reaction of forming peptide bonds?

Options

• -NH₂ group of two amino acids.

• -COOH group of two amino acids.

• -COOH group of one amino acid with NH₂ group of next amino acid.

• -NH₃ group of one amino acid with -COOH group of the next amino acid.

Answer 1

-COOH group of two amino acids.

Explanation:

A peptide bond connects the -COOH groups of two amino acids.