a-peptide-has-pka-values-of-20-45-and-90-at-ph-50-the-net-charge-is-1-what-does-

Question

A peptide has pKa values of 2.0, 4.5, and 9.0. At pH 5.0, the net charge is -1. What does this indicate about the predominant form of the peptide?

Accepted Answer

The peptide is predominantly in its deprotonated form.

Answer

The peptide is predominantly in its protonated form.

Answer

The peptide is neutral.

Answer

The peptide is positively charged.