V. Multiple choice 1. Bursa is a structure that is found? a. in most parasitic protozoa b. in all cestodes c. only in male hookworms d. in all nematodes 2. The asexual reproductive cycle of Plasmodium in the red blood cells is known as a. Erythrocytic cycle b. Enteroepithelial cycle c. Exoerythrocytic cycle d. Schizogony 3. Identify the parasite that is in the family Trypanosomatidae? a. Naegleria b. Toxoplasma gondii c. Trichomonas sp. d. Leishmania donovani 4. Which of the following parasite does not have a digestive tract? a. Fasciola hepatica b. Necator americanus c. Ascaris lumbricoides d. Echinococcus granulosus 5. "Which of these parasites is not a hemoflagellate? a. Trypanosoma gambiense b. Trypanosoma rhodesiense c. Giardia lamblia d. Trypanosoma cruzi 6. Identify the parasite that is transmitted by the ingestion of contaminated food/fruit or water a. Trypanosoma cruzi b. Giardia lamblia c. Trypanosoma gambiense d. Trichomonas vaginalis 7. Infection of humans with this parasite is by ingestion of larvae in intermediate host tissue and also by accidental ingestion of embryonated eggs. a. Entamoeba histolytica b. Taenia solium c. Taenia saginata d. Diphyllobothrium latum
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Bursa structure that is found in: - most parasitic protozoa - all cestodes - all hookworms - all nematodes Answer: **\text{all nematodes}** Show more…
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The Flagellates A. List the classification of the following flagellates - Giardia lamblia and Trypanosoma brucei. B. Draw Giardia lamblia cysts and trophozoites. Label which is which. C. Draw Giardia intestinalis vegetative stage. D. Draw Trypanosoma brucei. 1. Give the pathological conditions these 2 flagellates cause. 2. If the average diameter of the mammalian red blood cell is 7.5 microns, what do you estimate the length of Trypanosoma brucei to be? 3. How do these organisms move? The Ciliates A. List the classification of Balantidium coli. Draw, identify and label the nucleus, cilia and any other structures you can identify in Balantidium coli. 1. Is conjugation sexual reproduction or asexual reproduction? Describe what happens during conjugation. 2. What pathological condition does this protozoa cause? The Sporozoans A. List the Kingdom of sporozoans according to your notes. B. Draw Eimeria stiedae and Eimeria tenella. Are they morphologically different? How would you tell them apart. C. Draw Plasmodium falciparum, Plasmodium vivax, and Plasmodium malariae. C. Answer the following question 1. Are various Plasmodium spp. morphologically different? 2. What are pathological conditions do they cause? 3. Describe the life cycle of a NAMED Plasmodium. You pick the one you want to do. The life cycle has to be detailed. You may draw a diagram but do not cut and paste one.
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Worldwide What areas of the world have the highest incidence of parasitic infections? What are the top three parasites worldwide? Are the same parasites in the most affected areas? Or would it be better to have a top three parasites be in each region? United States What areas of the United States have the highest incidence of parasitic infections? What are our top three parasites? Are these the same as other areas of the world? Are they similar? What are the symptoms/treatments? California/Central Valley How about here? What are the top three animal parasites in the central valley? Are there any other parasites that are not animal that are important here? More Comparing these two phyla, Platyhelminthes and Nematoda. Which causes more problems? Which phyla is the parasitic infection of greater import the human infected? Which phyla(s) is/are the most important intermediate host? What would be some of ways of limiting parasitic infections?
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Match the following helminthic parasite with the correct route of infection for HUMANS. Some routes of infections (numbers) may be used more than once. Enterobius vermicularis Ascaris lumbricoides Taenia sp. (cysterciocosis) Schistosoma mansoni Ancyclostoma duodenale Trichinella spiralis Taenia sp. (taeniasis) Fasciola hepatica Diphyllobothrium latum 1. consuming greens with encysted larvae 2. cercaria penetrate skin 3. eating raw or undercooked meat with encysted larvae 4. ingesting eggs 5. larvae in fecally-contaminated soil penetrate skin
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