Foundations in Microbiology Chapter 23 Exam Questions and Correct Answers Already Passed

Foundations in Microbiology Chapter 23 Exam Questions and Correct Answers Already Passed Parasitology - Answers The study of Eukaryotic parasites, protozoa, and helminths Types of Protozoan Pathogens - Answers Trophozoite Cyst Trophozoite - Answers Most propagate by simple asexual cell division of the active feeding cell. Cyst - Answers Many undergo formation Protozoan pathogen - Answers Single- celled, animal-like microbes, most having some form of motility. Amoeboid Protozoa - Answers -Entamoeba histolytica -Naegleria fowleri Entamoeba histolytica - Answers Disease: Amebiasis (amebic dysentery) Reservior: Human Transmission: Fecal oral (Liver abscess) Naegleria fowleri - Answers Disease: Primary Amebic Meningoencephalitis (PAM) Reservior: Freshwater lakes, ponds and soil Transmission: Contact Ciliated Protozoa - Answers Balantidium Flagellated Protozoa - Answers Trichomonas vaginalis Giardia lamblia Trypanosoma brucei Trypanosoma cruzi Leishmania donovani Trichomonas vaginalis - Answers Disease: Trichomoniasis Reservior: Human Transmission: Sexual Test: Smear Trophoziote form ONLY Symptoms: Green/yellowish discharge Giardia lamblia - Answers Disease: Giardiasis Reservior: Human, animal Transmission: Fecal oral, ingest cyst Symptoms: Watery, foul smell diarrhea Trypanosoma brucei - Answers Disease: African sleeping sickness Transmission: Bite from a fly Trypansoma cruzi - Answers Disease: Chagas disease ONLY ONE with bug vector Symptoms: *inflammation in heart and brain* Leishmania donovani - Answers Disease: Leishmaniasis (Kala-azar) Reservior: Dogs, foxes, rodents Transmission: Vector: sandflies *Systemic (visceral)* Leishmania donovani - Answers -high intermiltent fever; weight loss, enlarged spleen, liver, and lymph nodes. Apicomplexan Protozoan - Answers -Plasmodium falciparum -Toxoplasma gondii -Cryptosporidium parvum -Babesia microti Plasmodium falciparum - Answers AGENT OF MALARIA Has 4 species 1. P. malariae 2. P. vivax 3. P. falcrparum 4. P. ovale Transmission: Mosquito, go to liver, asexual Toxoplasma gondii - Answers Disease: Toxoplasmosis Reservior: Domestic cats Transmission: ingestion of raw meat contaminated with cat feces Organism: Intracellular apicomplexan parasite Cryptosporidum parvum - Answers Disease: Cryptosporidum parvum Reservior: Human Transmission: Fecal-oral (oocyst) *Resistant to chlorine* *intestinal pathogen* ****Protozoan***** Babesia microti - Answers Disease: Babesiosis Reservior: rodents Vector: ticks FIRST PROTOZOAN ASSOCIATED WITH TICK **** Rare Zoonosis **** Define Helminths - Answers The sexes may seperate or hermaphroditic - Adulthood and mating occur in the definitive host - Larval develop occurs in the intermiate host Two phyla - Answers Nemathelminthes (Nematoda) 1. Round Platyhelminthes 1. Tremado- flukes