title: Visual cells and the concept of renewal.
mesh_terms: D000375:Aging; D000818:Animals; D001345:Autoradiography; D002462:Cell Membrane / Q000378:metabolism; D002940:Circadian Rhythm; D004247:DNA / Q000096:biosynthesis; D004734:Energy Metabolism; D006605:Hibernation; D006706:Homeostasis; D006801:Humans; D050356:Lipid Metabolism; D008661:Metabolism, Inborn Errors / Q000378:metabolism; D010743:Phospholipids / Q000096:biosynthesis; D010786:Photoreceptor Cells / Q000378:metabolism* / Q000648:ultrastructure; D011506:Proteins / Q000378:metabolism; D012313:RNA / Q000096:biosynthesis; D012168:Retinal Pigments / Q000096:biosynthesis
chemical_list: D010743:Phospholipids; D011506:Proteins; D012168:Retinal Pigments; D012313:RNA; D004247:DNA