1 The Renal Proximal Tubule. - I. Introduction. - II. Morphologic Asymmetry. - III. Biochemical Asymmetry. - IV. Transport Asymmetry. - V. Interdependence of Tubular Transport Systems. - VI. Hormone Receptors. - VII. Structural Determinants of Epithelial Plasma Membrane Asymmetry. - VIII. Proximal Tubule Dysfunction. - IX. Conclusion. - X. References. - 2 The Involvement of the Golgi Apparatus in the Biosynthesis and Secretion of Glycoproteins and Polysaccharides. - I. Introduction. - II. Polysaccharide and Glycoprotein Formation. - III. Transport of the Polymers from the Endomembrane System. - IV. Membrane Fusion. - V. Control of Polysaccharide Formation for Secretion. - VI. References. - 3 Notes on the Heterogeneity Circulation and Modification of Membranes with Emphasis on Secretory Cells Photoreceptors and the Toad Bladder. - I. Introduction. - II. Membrane Heterogeneity and the Endoplasmic Reticulum. - III. Membrane Diversification. - IV. Concluding Comments. - V. References. - 4 Lipoprotein of the Outer Membrane of Escherichia coli. - I. Introduction. - II. Structure. - III. Biosynthesis. - IV. Modification and Assembly. - V. Genetic Approaches. - VI. Other Approaches. - VII. Conclusions. - VIII. References. - 5 Electrochemical Proton Gradient across the Membranes of Photophosphorylating Bacteria. - I. Introduction. - II. Electrochemical Potential Gradient across the Chromatophore Membrane. - III. Electrochemical Potential Gradient across the Bacteriorhodopsin Membrane. - IV. Functions of the Transmembrane Electrochemical Potential Gradient. - V. Addendum. - VI. References. Language: English