0 votes 0 votes Which one of the following amino acids has three ionizable groups? Glycine Leucine Valine Lysine Others gate2017 + – Milicevic3306 asked Mar 26, 2018 • edited Dec 7, 2020 by go_editor Milicevic3306 7.9k points answer comment Share Follow See all 0 reply Please log in or register to add a comment.