title: Biological membranes.
mesh_terms: D001693:Biological Transport, Active; D002462:Cell Membrane / Q000032:analysis / Q000378:metabolism*; D002463:Cell Membrane Permeability; D003460:Crystallization; D004912:Erythrocytes / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D005613:Freeze Etching; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008854:Microscopy, Electron; D010743:Phospholipids / Q000032:analysis; D011506:Proteins / Q000032:analysis; D013696:Temperature
chemical_list: D005227:Fatty Acids; D010743:Phospholipids; D011506:Proteins