The pOH range for the isoelectric point of the amphoteric ion of an amino acid is

Options

A. 5.5 to 6.3
B. 2.5 to 5.0
C. 7.7 to 8.5
D. 9.0 to 10.7

Answer

C

Explanation

The pH at which a particular amino acid does not migrate under the influence of an electric field is called isoelectric point of that amino acid. The pH range for the isoelectric point is from 5.5 to 6.3 or the pOH range for the isoelectric point is from 7.7 to 8.5.