Q. What is the main symptom of an infection caused by Entamoeba histolytica?
-
A.
Fever
-
B.
Diarrhea
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C.
Cough
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D.
Skin rash
Solution
Entamoeba histolytica primarily causes diarrhea, often with blood and mucus.
Correct Answer:
B
— Diarrhea
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Q. What is the primary habitat of Plasmodium species in the human body?
-
A.
Liver
-
B.
Intestines
-
C.
Lungs
-
D.
Skin
Solution
Plasmodium species primarily inhabit the liver during the initial stages of malaria infection.
Correct Answer:
A
— Liver
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Q. What is the primary mode of transmission for Giardia lamblia?
-
A.
Airborne droplets
-
B.
Contaminated water
-
C.
Direct contact with infected individuals
-
D.
Insect bites
Solution
Giardia lamblia is primarily transmitted through contaminated water sources.
Correct Answer:
B
— Contaminated water
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Q. What is the primary treatment for infections caused by Toxoplasma gondii?
-
A.
Metronidazole
-
B.
Sulfadiazine and pyrimethamine
-
C.
Chloroquine
-
D.
Ivermectin
Solution
Sulfadiazine and pyrimethamine are the standard treatment for Toxoplasma gondii infections.
Correct Answer:
B
— Sulfadiazine and pyrimethamine
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Q. What is the vector for the transmission of Leishmania species?
-
A.
Mosquitoes
-
B.
Ticks
-
C.
Sandflies
-
D.
Fleas
Solution
Leishmania species are transmitted by the bite of infected sandflies.
Correct Answer:
C
— Sandflies
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Q. Which of the following is a common diagnostic method for detecting protozoan infections?
-
A.
Blood culture
-
B.
Stool examination
-
C.
X-ray imaging
-
D.
Urinalysis
Solution
Stool examination is commonly used to diagnose infections caused by intestinal protozoa.
Correct Answer:
B
— Stool examination
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Q. Which of the following protozoa is known to cause malaria?
-
A.
Entamoeba histolytica
-
B.
Plasmodium falciparum
-
C.
Trypanosoma brucei
-
D.
Toxoplasma gondii
Solution
Plasmodium falciparum is the protozoan responsible for the most severe form of malaria.
Correct Answer:
B
— Plasmodium falciparum
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Q. Which protozoan is commonly associated with sleeping sickness?
-
A.
Giardia lamblia
-
B.
Plasmodium vivax
-
C.
Trypanosoma brucei
-
D.
Leishmania donovani
Solution
Trypanosoma brucei is the causative agent of sleeping sickness, transmitted by tsetse flies.
Correct Answer:
C
— Trypanosoma brucei
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Q. Which protozoan is known to cause severe dehydration in children due to diarrhea?
-
A.
Cryptosporidium parvum
-
B.
Entamoeba histolytica
-
C.
Giardia lamblia
-
D.
Balantidium coli
Solution
Cryptosporidium parvum can cause severe diarrhea leading to dehydration, especially in children.
Correct Answer:
A
— Cryptosporidium parvum
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