Question

The pH at which an amino acid has no net electric charge and does not move in an electric field is called:

• A. Isoelectric
• B. Isozyme
• C. Isomerase
• D. Isoelectric

Hint:

The isoelectric point (pI) equals the average of pKa values of ionizable groups in amino acids.

Answer 1

The Correct Option is B

The isoelectric point (pI) is the pH at which an amino acid exists as a zwitterion with no net electric charge. At this point, it does not migrate in an electric field.