Pathogenic Microbiology - Exam 1 questions with correct solution

Pathogenic Microbiology - Exam 1 Symbiosis relationship in which two species live closely together Mutualism A relationship between two species in which both species benefit Commensalism A relationship between two organisms in which one organism benefits and the other is unaffected Parasitism A relationship in which one organism lives on or in a host and harms it. Endoparasite a parasite established within the body of its host (Infection) ex.) entamoeba histolytica Ectoparasite A parasite established on the outer surface of its host (Infestation) ex.) lice, ticks, mites Facultative Parasite An organism capable of living an independent or a parasitic existence; not an obligatory parasite, but potentially parasitic. Definitive Host the animal in which a parasite passes its adult existence, sexual reproductive phase, or both Intermediate Host The animal in which a parasite passes its larval stage or asexual reproduction phase. Transport Host An animal that harbors a parasite that does not reproduce; it carries the parasite from one location to another to infect a new host. Reservoir Host An animal that harbors a species of parasite that is also parasitic for humans and from which a human may become infected. Accidental Host infection of a host other than the normal host species Where is Entamoeba gingivalis found? mouth; lives in the gums Where is Entamoeba Histolytica found? GI tract What is the most prevalent enteric parasite? Giardia la