Morphology

Cards (11)

What is the typical size range of trophozoites of Entamoeba coli?
= 18-27 µm
Which of the following best describes the motility of Entamoeba coli trophozoites?a)Rapid and progressiveb) Sluggish and nonprogressivec) Active and directionald) Rapid and jerky
= Sluggish and nonprogressive
How many nuclei does a typical trophozoite of Entamoeba coli have?
= Single nucleus
What is the characteristic appearance of the nucleus in Entamoeba coli trophozoites?
= It is eccentrically located with a large karyosome and peripheral chromatin.
Which of the following is commonly seen in the cytoplasm of Entamoeba coli trophozoites?
= Vacuoles containing bacteria
What is the absence of red blood cell inclusions indicative of in Entamoeba coli trophozoites?
= Nonpathogenicity
What is the size range of cysts of Entamoeba coli?
= 27-35 µm
How many nuclei can be present in cysts of Entamoeba coli?
= Four to eight nuclei
What may be present in the cytoplasm of young cysts of Entamoeba coli?
= Glycogen masses
What is the characteristic appearance of chromatoid bars in young cysts of Entamoeba coli?
= Pointed to splintered ends
Which of the following is NOT a feature of Entamoeba coli trophozoites?a)Sluggish motilityb) Red blood cell inclusionsc) Vacuoles containing bacteriad) Large karyosome in the nucleus
= Red blood cell inclusions