Question

What is zwitterion? Write a note on primary structure of protein?

Answer 1

Amino Acids as Zwitterions. Amino acids are the building blocks of proteins in living cells. They are compounds that contain an amino group and a carboxyl group. ... They share the structure shown here, where R represents one of the 20 possible side chains on an amino acid.

Answer 2

A zwitterion is a compound with no overall electrical charge, but which contains separate parts which are positively and negatively charged. If you increase the pH of a solution of an amino acid by adding hydroxide ions, the hydrogen ion is removed from the -NH3+group.
The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis.