Morphology

• What is the size range of E. polecki trophozoites?

  12 to 20 µm
• How do E. polecki trophozoites in normal consistency stools exhibit motility?

  =  Sluggish, nonprogressive
• How does the motility of E. polecki trophozoites in diarrheal stools compare to E. histolytica?

  = Rapid, unidirectional
• The nucleus of E. polecki trophozoites resembles the nuclei of which two organisms?

   E. histolytica and E. coli
• What is the average size of E. polecki cysts?

  12 to 18 µm
• How many nuclei do E. polecki cysts typically contain?

  One
• What does the nucleus of E. polecki cysts consist of?

  = Large central karyosome surrounded by fine and evenly distributed peripheral chromatin
• What can be found in the cytoplasm of young E. polecki cysts?

  Thin chromatoid bars and glycogen mass
• Approximately how many E. polecki cysts have a nondescript inclusion mass?

   50%
• What is known about the composition of the inclusion mass in E. polecki cysts?

   Its composition is unknown