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Exam (elaborations)

Parasitology Exam 3 Questions And Answers

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Parasitology Exam 3 Questions And Answers What do protists use for motility (3 answers) -flagella -cillia -pseudopodia true or false protists can utilize sexual and asexual reproduction true asexual reproduction in protists is known by ____________ binary fission true or false the protists ...

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  • October 20, 2024
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Parasitology Exam 3 Questions And Answers

What do protists use for motility (3 answers) -flagella


-cillia

-pseudopodia




true or false


protists can utilize sexual and asexual reproduction true




asexual reproduction in protists is known by ____________ binary fission




true or false


the protists are divided into groups based on locomotion, location, and reproduction true




Most amoebae are free-living organisms in ______________ soil and water




Amoebae have 2 life stages. What are they? troph and cyst




Amoebae reproduce via asexual reproduction

,Parasitology Exam 3 Questions And Answers

How are amoebae transmitted human to human




there are 2 groups of parasitic amoebae what are they obligate and facultative




obligate parasitic amoebae occur in the _________ in the human host digestive tract




facultative parasitic amoebae are free living in _______________ and can become parasitic if

they enter vertebrate tissues soil and water




Entamoeba histolytica is (obligate/facultative) obligate




_____________ is the most common pathogenic amoeba to parasitize humans Entamoeba

histolytica




_____________ is the causitive agent of Amoebiasis / Amoebic Dysentery Entamoeba

histolytica

,Parasitology Exam 3 Questions And Answers
an outbreak of ____________ at the wold fair in chicago in 1933 caused an outbreak due to

defective plumbing. This led to 1000 cases. Entamoeba histolytica




the trophozoite of Entamoeba histolytica often contains ___________ in their food vacuoles and

its a diagnostic characteristic red blood cells




the tophozoite of Entamoeba histolytica has a characteristic structure is the single nucleus with

one endosome that is _______________ located centrally




true or false

the trophozoite of Entamoeba histolytica living specimens show active, rapid movement

true




what is the primary habitat of the trophozoites of Entamoeba histolytica in their human hosts

large intestine




Entamoeba histolytica trophozoite - rapid movement


- directional movement

- finger like / explosive pseudopods

, Parasitology Exam 3 Questions And Answers
- large central endosome with ring of chromatin and delicate envelope




encystment is stimulated by ___________________ unfavorable conditions




the _________ of Entamoeba histolytica secretes cyst wall to form the round cyst precyst




fill in the blanks

nuclear division begins after encystment


__________ cyst -> ________ cyst -> _________ or mature cyst uninucleate


binucleate

quadrinucleate




Entamoeba histolytica cysts have rod-shaped ______________ chromatoidal bars




chromatoidal bars and vacuoles are most common in ______________ for Entamoeba histolytica

young cysts




Entamoeba histolytica cyst has cigar shaped areas of _______ packaged RNA

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