The following structure is drawn in an unconventional manner.

(a) Label the N terminus and the C terminus.

(b) Label the peptide bonds.

(c) Identify and label each amino acid present.

(d) Give the full name and the abbreviated name

N-terminus is referred to as the free amine end of the peptide chain and free carboxylic acid end is referred to as the C-terminus. Both the termini are different from each other with respect to chemical properties.

Peptide bonds are formed when the amine group of one amino acid forms bond with carbonyl carbon of another amino acid. A chain of amino acids is known as polypeptide.

Peptide bonds are denoted with asterisks (*)

Amino acids are building blocks of protein molecules. Proteins are broken or digested down into smaller molecules known as amino acids.

Full name of the given polypeptide is glycylglutaminylisoleucinamide. Its abbreviated name is Gly-Gln-Ile. Naming of the polypeptide is done from N-terminus to C-terminus.