Peptide Bonds in Proteins

Amino acids are the building blocks of proteins and play critical roles in various biological processes. They are organic compounds composed of carbon, hydrogen, oxygen, and nitrogen. There are 20 standard amino acids, each distinguished by its unique side chain (R group). During protein synthesis, amino acids link together through peptide bonds, forming polypeptide chains that fold into functional proteins.

This question focuses on one key feature of amino acids. Which of the following statements correctly describes the type of bond that connects amino acids in a protein?