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Parasitology Exam I and answers Gravid proglottida proglottid containing fully developed eggs or shelled embryos Rostellumdome-shaped area on the apex of the scolex, often with hooks Tegumentsyncytium, structure through which all required substances are absorbed Oncospherea tapeworm envelop that has 6 suckers or hooks Diphyllobothrium latumadult in small intestine->eggs in feces->egg hatches in water->free swimming coracidium eaten by copepod->procercoid-&g...

Parasitology Exam 3 and answers unicellularProtozoan parasites are _________ (unicellular/multicellular) eukaryotesProtozoans are ______________ (eukaryotes/prokaryotes) false; they lack thistrue or false protists have a cell wall false; they require moisture and this isn't really a problem for most parasitic protozoatrue or false protists do not require a lot of moisture encystShould drying occur, many parasites have the ability to _______________-secrete a...

Parasitology Exam 3 and answers BilateralThe symmetry of most nematoda is PseudocoelomNematodas possess a ________ (coelom/pseudocoelom/acoelom) CompleteNematodas have a(n) _________ digestive tract (complete/incomplete) Underlying hypodermisIn nematoda, the noncellular cuticle is secreted by an _________ ________. 4In nematoda, a chitinous cuticle is shed __ times. Ventral excretory poreIn nematoda, where does the secretory-excretory system open? Cuticle, ...

Parasitology Exam 2 and answers TransmissionFundamental, mode depends on parasite -Fecal/oral -Trophic (consumption) -Direct Penetration -Vector Transmission -Sexual -Vertical Broadcast ReproductionA reproductive strategy in which reproductive propagules are released into the environment to be dispersed by water or wind. Many eggs are released. Complex migrationascaris suum- migrate also through respiratory system. Maintaining PositionUsed to cope with movement -Adhesive di...

Parasitology Exam 1- Lecture Quizes and answers d. stoolThe most common specimen submitted to the laboratory for detection of parasites is: a. blood b. sputum c. urine d. stool b. definitive host.The parasite host in which the reproductive phase of parasite development occurs is called the: a. obligatory host. b. definitive host. c. intermediate host. d. reservoir host. c. continue the parasite's life cycle.The purpose of a parasite infection of a host is to: a...

parasitology exam 1 practice questions and answers Which of the following statements best describes the process called phagocytosis? - It requires the rearrangement of clathrin - Small molecules are usually internalized in this manner - It is a process performed by specialized cells for the internalization of particles greater than 0.5um - All receptors can mediate this processIt is a process performed by specialized cells for the internalization of particles greater than 0.5um ...

Parasitology Exam 1 and answers A close relationship between two species that benefits at least one of the species.symbiosis each partner in symbiosissymbiont extremely short term relationship One symbiont benefits at the expense of the otherPredator-Prey symbiotic relationship Phor- To carry Smaller member of the relationship is mechanically carried about by the larger member. Travel buddiesPhoresis (symbiotic relationship) both organisms benefit Ofte...

Parasitology Exam 1 and answers Autogenic parasitecomplete life cycle in a single ecosystem i.e freshwater isopods allogenic parasiteslife cycle in more than one ecosystem i.e lyme bacteria Obligatory parasiteAn organism that MUST live as a parasite, it is incapable of living on its own faculative parasitesome stage is free living but eventually requires a host opportunistic parasirean organism that may parasitize but doesn't need to in order to complete its life ...

Parasitology Exam 1 and answers EctoparasiteReside on the external surface of their host, causing infestations EndoparasiteReside inside the host's body leading to infections AutogenicComplete their life cycle in a single ecosystem AllogenicComplete their life cycle in more than one type of ecosystem MicroparasiteSmall and have rapid generation times; difficult to quantify MacroparasiteLarger, though small er than their host; can be quantified ObligatoryRequi...

Parasitology Chapter 10 questions and answers Giardia lamblia G.lamblia adheres to the intestinal mucosa and appears intermittently in feces; therefore, three to six samples may be needed to successfully find the organisms.For which of the following parasites might the examination of as many as six specimens be needed in order to recover the parasite: Castor oilIf patients must be purged to enhance recovery of parasites, any of the following enemics may be used EXCEPT: ...