Karen Hopkin | May 1, 2011 | 9 min read
By Karen Hopkin Making the Gradient Ron Kaback didn’t believe that electrochemical gradients could power the transport of sugars and amino acids across cell membranes—until he proved that they do. H. RONALD KABACK Professor of Physiology University of California, Los Angeles F1000 Faculty Member: Neuronal Signaling Mechanisms Photo © 2011 Jim Cornfield Ron Kaback got hooked on membrane transport as a medical student at the Albert Einstei