SK025 Structure of Amino Acid at Different pH

Introduction to amino acids

 (a) Draw the general structure of α–amino acid.
(b) Name a given amino acid according to the IUPAC nomenclature.
(c) Define the terms zwitterion and isoelectric point, pI.
(d) Predict the structures of a given amino acid 

  • i. in acidic medium 
  • ii. in basic medium 
  • iii. at pI 

Amphoteric Properties of Amino Acids (Example)

  

Structure of Amino Acid at Different pH (Example)