Multiple Choice
Which department in a clinical laboratory typically handles specimens collected from many types of healthcare facilities?
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1. Introduction to Microbiology
Introduction to Microbiology
Multiple Choice
Which of the following statements correctly describes Entamoeba histolytica?
A
It is a Gram-positive bacterium responsible for tuberculosis.
B
It is a protozoan parasite that causes amoebic dysentery by invading the intestinal mucosa.
C
It is a helminth that causes schistosomiasis.
D
It is a virus that leads to hepatitis B infection.
Verified step by step guidance1
Identify the classification of Entamoeba histolytica by understanding its biological nature. It is important to know whether it is a bacterium, protozoan, helminth, or virus.
Recall that Entamoeba histolytica is a protozoan parasite, which means it is a single-celled eukaryotic organism, not a bacterium, helminth, or virus.
Understand the disease caused by Entamoeba histolytica: it invades the intestinal mucosa and causes amoebic dysentery, characterized by severe diarrhea and tissue damage.
Eliminate incorrect options by matching the organism type and disease: it is not a Gram-positive bacterium (which would be a type of bacteria), not a helminth (parasitic worm), and not a virus.
Conclude that the correct description is that Entamoeba histolytica is a protozoan parasite causing amoebic dysentery by invading the intestinal mucosa.
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