18 Questions
What is the organ of locomotion in Subphylum Mastigophora?
Flagella
What is the intracellular portion of the flagella called in Mastigophora?
Axostyle or axoneme
Where are the flagella located in most flagellates?
External
Where do the flagella arise from in Mastigophora?
Kinetoplast
What is the habitat of Dientamoeba fragilis?
Cecum and colon
Who first observed Giardia lamblia?
A.V. Leeuwenhoek
What is the characteristic movement of Retortamonas intestinalis?
Jerky movement
What is the infective stage of Retortamonas intestinalis?
Cyst
How can both forms of Retortamonas intestinalis be demonstrated?
By permanent staining of the stool sample
What is the shape of Retortamonas intestinalis?
Elongated pyriform or oval
What is the recent reclassification of Dientamoeba fragilis based on?
Electron microscopic studies
In which age group is a higher incidence of Dientamoeba fragilis reported?
Children
What is the characteristic movement of the trophozoite of Chilomastix mesnili?
Stiff, rotary movement
What supports the cytostome of Chilomastix mesnili?
Two cytostomal fibrils, with the right one being prominent and curved, and the left one being straight and less conspicuous
What is the characteristic feature at the anterior end of the cytoplasm of Chilomastix mesnili?
Remnant of the curved cytostomal fibrils, called as shepherd’s crook
What is the shape of the cyst of Chilomastix mesnili?
Lemon-shaped with a narrow anterior end
What is the number of nuclei in the cyst of Chilomastix mesnili?
Single
How many forms does Enteromonas hominis exist in?
Two
Test your knowledge about the characteristics of Mastigophora, a subphylum of protozoa. Learn about the organ of locomotion, flagella structure, and kinetoplast components in Mastigophora. Identify the intracellular portion of the flagella and where they arise from in this subphylum.
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