12 Questions
What is Entamoeba histolytica?
A pathogenic amoeba that can cause intestinal disease and liver abscess in humans.
What is the main difference between the trophozoite and cyst stages of protozoa?
The trophozoite is active, while the cyst is dormant.
How is Entamoeba histolytica typically transmitted?
Through the fecal-oral route.
What is the primary mode of diagnosis for Entamoeba histolytica?
Direct Fecal Smear (DFS) for trophozoites and Formalin Ether/Ethyl Acetate Concentration Test (FECT) for cysts.
What is the treatment for Entamoeba histolytica infection?
Metronidazole.
What is Entamoeba dispar?
A commensal amoeba that does not cause disease in humans.
What is the characteristic feature of the trophozoite stage of Acanthamoeba sp.?
Thorn-like appendages
What is the primary mode of transmission of Acanthamoeba sp.?
Contaminated food and water
What is the typical diagnosis for Acanthamoeba keratitis?
Epithelial biopsy or corneal scrapings
What is the primary prevention method for Acanthamoeba sp. infection?
Meticulous contact lens hygiene
What is the typical treatment for Acanthamoeba keratitis?
Surgical excision of infected cornea with corneal transplantation
What is the disease caused by Acanthamoeba sp. infection of the nasal tissue?
Granulomatous amebic encephalitis (GAE)
Learn about the characteristics of protozoa, including their habitat, types, and life cycle stages. This quiz covers the different forms of protozoa, such as amoebae, ciliates, flagellates, and sporozoans. Test your knowledge of these unicellular, eukaryotic organisms and their importance in medicine.
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