Chapter 8: Medical Parasitology — Online MCQ Test
MICROBIOLOGY · CLASS 12th · Tamil Nadu State Board
Practice Chapter 8: Medical Parasitology with a free chapter-wise online MCQ test.
This chapter covers: Focusing on eukaryotic human parasites this chapter explores pathogenic protozoa and helminths. It covers parasite lifecycles host-vector interactions disease transmission clinical....
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Chapter 8: Medical Parasitology — Important Questions & Answers
Which protozoan parasite causes amoebic dysentery?
- A. Entamoeba histolytica
- B. Plasmodium vivax
- C. Giardia lamblia
- D. Trypanosoma gambiense
Answer: A. Entamoeba histolytica
Entamoeba histolytica is the causative agent of amoebiasis, which can lead to amoebic dysentery. It commonly infects the large intestine.
Entamoeba histolytica is the causative agent of amoebiasis, which can lead to amoebic dysentery. It commonly infects the large intestine.
The vector for malarial parasite is the female ____ mosquito.
- A. Culex
- B. Aedes
- C. Anopheles
- D. House fly
Answer: C. Anopheles
Female Anopheles mosquito transmits Plasmodium species and is the vector for malaria. Only the female mosquito takes blood meals.
Female Anopheles mosquito transmits Plasmodium species and is the vector for malaria. Only the female mosquito takes blood meals.
A person infected with Plasmodium usually shows fever at regular intervals due to ____.
- A. Rupture of RBCs releasing parasites
- B. Damage to liver only
- C. Formation of cysts in intestine
- D. Blockage of lymph vessels
Answer: A. Rupture of RBCs releasing parasites
The periodic fever in malaria occurs when infected red blood cells burst and release merozoites and toxins into the bloodstream. This causes chills and fever episodes.
The periodic fever in malaria occurs when infected red blood cells burst and release merozoites and toxins into the bloodstream. This causes chills and fever episodes.
Which of the following is NOT a preventive measure for intestinal protozoan infections?
- A. Drinking boiled water
- B. Washing hands before meals
- C. Eating uncovered food from roadside
- D. Proper sanitation
Answer: C. Eating uncovered food from roadside
Eating uncovered food from roadside increases the risk of ingesting parasite cysts and contaminated material. The other options help prevent infection.
Eating uncovered food from roadside increases the risk of ingesting parasite cysts and contaminated material. The other options help prevent infection.
The best control strategy for vector-borne parasitic diseases is to ____.
- A. Treat only the symptoms
- B. Eliminate the vector and interrupt transmission
- C. Avoid all proteins in diet
- D. Use antibiotics without diagnosis
Answer: B. Eliminate the vector and interrupt transmission
Control of vector-borne diseases like malaria and filariasis depends on reducing or eliminating the vector and breaking the transmission cycle. Treatment alone may not stop spread in the community.
Control of vector-borne diseases like malaria and filariasis depends on reducing or eliminating the vector and breaking the transmission cycle. Treatment alone may not stop spread in the community.