title: Membranes and sorting.
mesh_terms: D001692:Biological Transport; D002462:Cell Membrane / Q000378:metabolism*; D016764:Cell Polarity; D004705:Endocytosis; D007425:Intracellular Membranes / Q000378:metabolism*; D050356:Lipid Metabolism; D008561:Membrane Fusion; D015388:Organelles / Q000378:metabolism*; D011506:Proteins / Q000378:metabolism*
chemical_list: D011506:Proteins