5.1.3: Protozoa (Exercises)

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These are homework exercises to accompany Kaiser's "Microbiology" TextMap. Microbiology is the study of microorganisms, which are defined as any microscopic organism that comprises either a single cell (unicellular), cell clusters or no cell at all (acellular). This includes eukaryotes, such as fungi and protists, and prokaryotes. Viruses and prions, though not strictly classed as living organisms, are also studied.

9.1: Characteristics of Protozoa

Study the material in this section and then write out the answers to these questions. Do not just click on the answers and write them out. This will not test your understanding of this tutorial.

Match the following:
_____ Multiple fission. The nucleus divides many times before the cell divides. The single cell then separates into numerous daughter cells. (ans)

_____ Division in which one cell splits in two. (ans)

_____ Division in which a cell pinches off of the parent cell. (ans)

_____ The vegetative, reproducing, feeding form of a protoaoan. (ans)

_____ A protective form that enables protozoa to survive harsh environments. (ans)
1. trophozoite
2. cyst
3. fission
4. schizogony
5. budding

9.2: Medically Important Protozoa

Study the material in this section and then write out the answers to these questions. Do not just click on the answers and write them out. This will not test your understanding of this tutorial.

Matching
_____ Moves by flagella; transmitted by ingesting cysts via the fecal-oral route; causes an intestinal infection. (ans)

_____ Moves by cilia; transmitted by ingesting cysts via the fecal-oral route; causes an intestinal infection. (ans)

_____ Moves by flagella; transmitted by an infected tsetse fly; causes African sleeping sickness. (ans)

_____ Nonmotile in the body; reproduces sexually and asexually; transmitted by an infecteded Anopheles mosquito; causes malaria. (ans)

_____ Moves by flagella; transmitted sexually; causes vaginitis. (ans)

_____ Nonmotile in the body; reproduces sexually and asexually; transmitted by eating infected meat or inhaling or ingesting cysts from cat feces. (ans)
1. Entamoeba histolytica
2. Acanthamoeba
3. Giardia lamblia
4. Trichomonas vaginalis
5. Trypanosoma brucei-gambiens
6. Balantidium coli
7. Plasmodium species
8. Toxoplasma gondii
9. Cryptosporidium
Multiple Choice (ans)