And this is the deprotonated version of the carboxylic acid group. Why? Well, it turns out that the PH of the solution in which that amino acid is in determines whether or not these are proteinative or deprovinated. And it turns out that at a neutral PH of around seven, our amino acids exist predominantly in their dipolar form. And the dipolar form is also known as the Zvitorion form. Now, what do we mean by the Zvitorion form?