click below
click below
Normal Size Small Size show me how
Protista
Microbiology 1 - Protista
Question | Answer |
---|---|
Protista | 1 celled, eukaryotic, once a phylum (protozoa) of animal kingdom |
3 kinds of Protista | Plant, Fungus, Animal |
Plant | autotrophic (self-feeding) & have green pigment chlorophyll |
Fungus | saprophytic (feed on dead/decaying organic matter) |
Animal | heterotrophic (other feeding), parasites |
Animal divided by | motility, nutrition, reproduction |
4 animal groups | sacrodines; mastigophora; ciliophora; apicomplexa/sporazoa |
Sarcodines | amoebas |
2 forms of sarcodines | trophozoite & cyst |
trophozoite | free floating |
cyst form | dormant encysted |
sarcodine motility | pseudopodia (foot-like projection of cytoplasm) |
sarcodine nutrition | phagocytosis |
sarcodine reproduction | binary fission |
Pathogenic sarcodines | acanthamoeba, naegleria fowler, entamoeba histolytica, dientamoeba fragilis |
acanthamoeba | opportunists |
ananthameoba cause | eye infection |
A. castella affects | pancreas, skin |
A. polyphaga | hot tub associated, can be deadly |
A. polyphaga causes | eye, liver, kidney, brain & lung infections |
naelgeria fowler | previously known as Gruberi |
naelgeria fowler transmitted via | swimming |
naelgeria fowler causes | primary meningio encephalitis (PAME) - deadly, not common |
entamoeba histolytica causes | amoebic dysentery from ingesting cysts in water/food |
amoebic dysentery Sx: | abdominal tenderness, 30+bms/day, severe dehydration, invades liver, lung, rarely brain |
amoebic dysentery Dx: | blood filled cysts in stool & immunodiagnosis |
Dientamoeba Fragilis | chronic, mild diarrhea |