Essentials of Membrane Transport brings together the essentials of membrane transport from bacteria to mammalian cells and correlates these elements with electrical and ionic regulation. The text gives an overview that is clear and concise enough to cater for the needs of those who only wish to take on board the basic concepts in order to understand more complex systems at both cellular and organismal level. All explanations are anchored in biophysics and thermodynamics, protein structure and enzymology.