Aspartame is methyl ester of a dipeptide. Write down the names and structures of the two amino acids which form this dipeptide.

Name two amino acids which contain sulphur.

Write the zwitter ion structure of alpha -amino acids ?

Write down the structures of the following: Tri methyl amine

The methyl ester of a dipeptide is 100 times sweeter than cane sugar. What are the constituents alpha -amino acids of this dipeptide?

Aspartame, an artificial sweetener, is a peptide and has the following structure : Which of the two amino acids is more hydrophobic ?

Write the name of the linkage joinining two amino acids.