TMA3/BIO411

TMA Quiz Questions TMA: TMA3/BIO411 Matric Number:  SCORE=9.00 BIO411 - Parasitology Dr. Olaniyi Omolara (oolaniyi@noun.edu.ng ) 1 What are protozoans? Protozoans are basic laboratory parasites. Protozoans are multicellular , microscopic eukaryotic organisms Protozoans are a polyphyletic group of unicellular animals whose mode of classification is primarily based on their locomotory organelle. Protozoans are membrane-bound organelles. 2 What is the basic taxonomic character of protozoans? absence/presence and type of motile organelles heterotrophism pathogenicity their life cycle 3 The first animals with membrane-bound organelles are ___ Prostits Protozoans Protozoos Parasites 4 Which of the following is not a parasitic protozoan? Entamoeba histolitica Leishmania aethiopica Gigantina stellata Trypanosoma brucei 5 Life cycle in Plasmodium spp. is asexual sexual both asexual and sexual asexual and multiple fusion 6 Which of the following is not a sexual reproduction process? schizogony conjugation syngamy autogamy 7 Which of the following is not an asexual reproduction process? Sporogony Merogony Polyembryony Syngamy 8 Many protozoan parasites are found in ___ of their hosts. Gastrointestinal tract taxonomic group polyphletic group epidermis 9 What are trematodes? base worms Flukes round worms Stings 10 Which of the following are the two classes of flatworms? Monogeneans and Digeneans Schistosoma and Dactylogyrus Digenetics and Trematodes Fasciola and Paragonimus 11 Parasitic flatworms are basically hermaphroditic with an exception. Which genus is this? Fascicola Clonorchis Gyrodactylus Schistosoma 12 Which of the following is not a characteristic feature of the biology of trematodes? bilateral symmetry specific physiologic organs segmentation Pronounced cephalization 13 Cecariae of Schistosoma spp. is released by snail into water where it penetrates skin of the host. In what form can it be diagnosed in the host and at what stage? It develops into miricidia in the host and migrates to the blood where it can be readily diagnosed. It is released as miricidia in intermediate host It develops into sporocyst that is released by the host to infect the snail intermediate host. It can be diagnosed at this stage. It is released as eggs in feaces and urine of the host and can be diagnosed at this stage 14 Cestodes are ___ flatworms commonly referred to as tapeworms ectoparasites of vertebrates like fishes, swine, man, etc short roundworms that taper at both ends endoparasites of invertebrates 15 Two sub-orders of the class Cestoda are Solium and Saginata Eucestoda and Cestodaria Latum and Canimum Nanacestoda and Granucestoda 16 Which of the following is not a genus in the class Cestoda Dactylogyrus Taenia Hymenolepis Echinococcus 17 Which of the following are important features that allow Cestodes to be firmly attached to their host for phoretic and nutritional purpose? Spicules Immature proglottids Segmentation of the body Adhesive suckers and hooks 18 Which of the following term does not describe a nematode? round cylindrical flat unsegmented 19 Guinea worm infection is caused by Dracunculus medinensis Onchocerca volvulus Wuchereria bancrofti Necator americana 20 Which of the following is not a management practice for nematode control? good sanitary conditions chemotherapy chemoprophylaxis heat treatment