Free Parasitology MCQs with Answers
33 Parasitology MCQs from Microbiology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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- A. Brain
- B. Liver
- C. Spleen
- D. Lungs
Explanation: The liver is the commonest extraintestinal site because Entamoeba histolytica reaches it through the portal circulation from the…
Correct answer: Liver- A. Solar Keratosis
- B. Malignant pustule
- C. L. Tropica sore
- D. Venereal ulcerTry Prep Courses
Explanation: Delhi boil is the traditional name for the dry cutaneous lesion caused by Leishmania tropica.
Correct answer: L. Tropica sore- A. Round worm
- B. Whip worm
- C. Tape worm
- D. Seat woman
Explanation: Trichuris trichiura is called the whipworm because its adult has a long, thin anterior end and a thicker posterior end, resembling a whip.
Correct answer: Whip worm- A. Chocolate agar
- B. NNN
- C. Tellurite
- D. Sabourauds
Explanation: Leishmania is cultured in Novy-MacNeal-Nicolle medium, abbreviated NNN, where the promastigote form can multiply.
Correct answer: NNN- A. T. Solium
- B. Echinococcus granulosus
- C. T. Saginata
- D. nana
Explanation: Cysticercosis cellulosae is the larval tissue infection caused by Taenia solium, especially when humans ingest its eggs.
Correct answer: T. Solium- A. Bilurubin
- B. Haemoglobin
- C. Iron
- D. Haematin-globin pigment
Explanation: Malaria pigment, or haemozoin, is a brown-black haematin-containing pigment formed when Plasmodium digests haemoglobin inside red cells.
Correct answer: Haematin-globin pigment- A. Sporozoite
- B. Merozoite
- C. Hypnozoite
- D. Gametocyte
Explanation: The bite of an infected Anopheles mosquito injects Plasmodium sporozoites into the human bloodstream, and these first invade liver cells.
Correct answer: Sporozoite- A. Cysts in the sterile pus
- B. Trophozoites in the pus
- C. Cysts in the intestine
- D. Trophozoites in the feces
Explanation: Amoebic liver abscess is supported by finding Entamoeba histolytica trophozoites in the abscess material, particularly near the abscess…
Correct answer: Trophozoites in the pus- A. Lymphocytes
- B. Neutrophilis
- C. Eosinophils
- D. Basophils
Explanation: Helminthic and many other parasitic infections commonly stimulate eosinophilia, so eosinophils predominate in the typical parasitic…
Correct answer: Eosinophils- A. Dog tapeworm
- B. Hookworm
- C. Fish tapeworm
- D. Threadworm
Explanation: The fish tapeworm, classically Diphyllobothrium latum, can cause vitamin B12 deficiency by competing for intestinal B12 and thereby…
Correct answer: Fish tapeworm- A. Kalahazar
- B. Toxoplasmosis
- C. Malaria
- D. Sleeping sickness
Explanation: LD bodies, or Leishman-Donovan bodies, are intracellular amastigotes of Leishmania donovani found in macrophages in kala-azar, or visceral…
Correct answer: Kalahazar- A. Parasitic in nature
- B. Fungal
- C. Congenital
- D. Viral
Explanation: A hydatid cyst is a parasitic cyst produced by the larval stage of Echinococcus granulosus, usually involving the liver or lungs.
Correct answer: Parasitic in nature- A. Left lobe of liver is commonly involved
- B. Portal system is the main filtration system
- C. Trophozoites can be visualized in the pus
- D. Non-suppurative form is the serious form of extra intestinal amoebiasis
Explanation: Entamoeba histolytica trophozoites may be found in the pus or, more reliably, at the margin of an amoebic liver abscess.
Correct answer: Trophozoites can be visualized in the pus