Chapter 19, Problem 19.11E

Interpretation Introduction

Interpretation:

The meaning of the term isoelectric point is to be stated.

Concept introduction:

An isoelectric point is defined as the $\text{pH}$ at which a particular amino acid carries no net electrical charge or is electrical neutral. An isoelectric point is represented by the symbol $\text{pI}$. For a protein, when the $\text{pH}$ is greater than $\text{pI}$, a protein has a net negative charge and when the $\text{pH}$ is less than $\text{pI}$, the protein has a net positive charge.