title: How do toxins penetrate cells?
mesh_terms: D000818:Animals; D001692:Biological Transport; D004705:Endocytosis; D006801:Humans; D011955:Receptors, Drug / Q000378:metabolism; D012270:Ribosomes / Q000187:drug effects; D012276:Ricin / Q000378:metabolism; D014118:Toxins, Biological / Q000378:metabolism / Q000633:toxicity*
chemical_list: D011955:Receptors, Drug; D014118:Toxins, Biological; D012276:Ricin