Parasitology lab final

Entamoeba histolytica life cycle

Host consumes mature cyst and travels to the small intestine

Cyst turns into trophozoite and goes through excystation to produce 4 enatmibulae

They travel to the large intestine to deposit on the lining

They go through binary fission and colonize

They turn into precyst, exit host, and become mature cysts

Entamoeba coli/ Endolimax nana/ Iodamoeba buetschlli life cycle

Mature cyst ingested by host

Cysts turn into trophozoites and go through excystation in the small intestine

Cysts and trophozoites are released through feces

How many nuclei does E. histolytica have?

4

How many nuclei does Entamoeba coli have?

8

How many nuclei does Endolimax nana have?

4

How many nuclei does buetchlli have?

1

Balantidium coli life cycle

Cyst is ingested through contaminated food/drink

Cyst turns into trophozoite and invade colon wall

Cysts and trophozoites are released through feces

Trypanosoma brucei gambiense/rhodiense life cycle

Tstse fly ingests immature trypomastigotes into bloodstream

procyclic trypomastigote, epimastigotes, metacyclic trypomastigote

Tstse fly injects metacyclic trypomastigote into human blood stream

Trypomastigotes go through binary fission

How many flagellates does trypanosoma brucei gambiense/rhodiense have?

1, hemoflagellate

Trypanosoma cruzi life cycle

Immature trypomastigote is ingested by kissing bug through bite

Epimastigote, metacyclic trypomastigote

Metacyclic trypomastigote in kissing bug fecal matter enters the human bloodstream through bite

Amastigote in tissue, then trypomastigote in bloodstream

Trypomastigote go through binary fisson

How many flagellate in trypanosoma cruzi?

1, nonmotial

Leishmania donovani life cycle

Amastigote ingested in sand fly bloodstream through bite

Amastigote, promastigote, binary fission

Promastigote injected into human bloodstream

Promastigote, amastigote engulfed in microphages and binary fission

How many flagellate does L. donovani have?

1

Chilomastix mesnili life cycle

Cyst ingested

Excysts in small intestine and binary fisson

Trophozoites and cyst exit through feces

How many flagellate does C. mesnili have?

3

Giardia lamblia life cycle

Cyst ingested through contaminated food/drink

Cysts turn into trophozoites in small intestine

Cysts and trophozoites exit through feces

How many flagellate does Giardia Lamblia have?

8

Trichomonas vaginalis life cycle

Trophozoite in the vaginal/prostatic area go through binary fission and transfer to other humans through sexual intercourse

How many flagellates does T.vaginalis have?

5

How many nuclei does T.vaginalis have?

8

Dientamoeba fragilis life cycle

Trophozoites ingested through fecal matter

Binary fission in colon

Trophozoites exit through feces

Toxoplasma gondii

Unsporulated oocysts in feces from cattle/pets are exposed to soil and turn into sporulates oocyst

Oocyst ingested through contaminated food/drinks

Oocysts, bradyzoites/tachyzoites, unsporulated cysts in tissue

Plasmodium sp/ life cycle

Sporogonic cycle

• Gametocytes ingested through contaminated human blood

• Gametocytes, macrogametocytes/microgametocytes

• Ookinette, oocyst, rupture oocyst and release of sporozoites

Exoerthrocytic cycle

• Sporozoites ingested into human bloodstream through bite

• Sporozoites travel to liver and turn to schizont then rupture

Erthrocytic cycle

• Immature trophozoites travel to RBC and turn into gametocytes

Endolimax nana

Iodamoeba buetschlli

Giardia lamblia

Entamoeba coli