Para Lab - Quiz 1 Part 2 Flashcards
eukaryotic unicellular organisms
-possess nucleus, organelles and locomotory structures
protozoans
phyla in protozoans
sarcomastigophora
ciliophora
apicomplexa
subphyla of sarcomastigophora
sarcodina
mastigophora
protozoan stage
-vegetative (moving) stage
trophozoite
protozoan stage
-motile stage
trophozoite
protozoan stage
-found in watery and diarrheic stools (sensitive, easily destroyed if there’s no water)
trophozoite
protozoan stage
-resistant stage
cyst
protozoan stage
-non-motile
cyst
protozoan stage
-usually infective stage
cyst
protozoan stage
-stain: Lugol’s iodine
cyst
protozoan stage
-found in formed stool
cyst
the only pathogenic amoeba; invasive
- Entamoeba histolytica
-morphologically similar to Entamoeba dispar (non-pathogenic)
- Entamoeba histolytica
-causes amoebiasis or amebic dysentery (bloody diarrhea)
- Entamoeba histolytica
Diagnosis for amebiasis
Stool exam/ DFS
virulence factors of E.histolytica
Virulence factors:
• Lectin – for attachment
• Amebapores – form holes in tissue
• Cysteine proteinases – destroys tissue
commensal, non-pathogenic
-its early cystic stage is similar to E. histolytica
Entamoeba coli
amoeba of pigs and monkey
E. polecki
entamoeba with no cyst stage
E. gingivalis
small race of E. histolytica
-almost the same with E. histolytica but smaller
E. hartmanni
entamoeba that ingests WBC
E. gingivalis
entamoeba found in oral cavity (only entamoeba not found in large intestine)
E. gingivalis