Entamoeba coli Infections
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Questions and Answers

What is the size range of Entamoeba polecki trophozoites?

  • 10 to 20μm
  • 5 to 15μm
  • 15 to 30μm
  • 8 to 25μm (correct)

Which characteristic is NOT true about E.coli infections?

  • Treatment is indicated (correct)
  • Usually asymptomatic
  • Nonpathogenic
  • Diarrheal stools contain trophozoites with sluggish motility

What is the primary method of diagnosis for recovering E.coli trophozoites and cysts?

  • Stool examination (correct)
  • Urine analysis
  • X-ray imaging
  • Blood test

How many stages are there in the life cycle of Entamoeba polecki?

<p>2 (D)</p> Signup and view all the answers

Which characteristic is true about Entamoeba polecki cysts?

<p>Spherical to oval in shape (D)</p> Signup and view all the answers

In what part of the body does excystation occur for Entamoeba coli?

<p>Small intestine (D)</p> Signup and view all the answers

What is the typical size range of Entamoeba hartmanni trophozoites?

<p>5 to 15 μm (D)</p> Signup and view all the answers

Which statement about Entamoeba hartmanni trophozoites is NOT true?

<p>They exhibit progressive motility (B)</p> Signup and view all the answers

What is the average size range of Entamoeba hartmanni cysts?

<p>7 to 9 μm (C)</p> Signup and view all the answers

How many nuclei can an Entamoeba hartmanni cyst have?

<p>1 to 4 nuclei (D)</p> Signup and view all the answers

Where are Entamoeba hartmanni trophozoites typically found?

<p>In diarrheal stool (B)</p> Signup and view all the answers

Which of the following is NOT part of the life cycle of Entamoeba hartmanni?

<p>Invasion of the submucosa layer (B)</p> Signup and view all the answers

Which stage of Entamoeba hartmanni is passed in the feces?

<p>Both trophozoites and cysts (C)</p> Signup and view all the answers

What is the typical size range of Entamoeba coli trophozoites?

<p>Trophozoites can range from 12 to 55 μm (A)</p> Signup and view all the answers

How does Entamoeba coli colonize the human intestine?

<p>By ingesting mature cysts in contaminated food, water, or fomites (A)</p> Signup and view all the answers

Which of the following statements about Entamoeba hartmanni is true?

<p>It is typically asymptomatic and treatment is usually not indicated (D)</p> Signup and view all the answers

Which characteristic distinguishes Entamoeba coli cysts from Entamoeba histolytica cysts during microscopic examination?

<p>The presence of nuclei in the cysts (B)</p> Signup and view all the answers

Which of the following best describes the motility of Entamoeba coli trophozoites?

<p>Sluggish and nonprogressive (B)</p> Signup and view all the answers

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