Parasitology Final Exam (SMP 15-16)

Question 1: In which stage does the definitive host carry the parasite?

A. Adult stage or sexually reproductive stage.

B. Larval or immature stage.

C. Egg stage.

D. Juvenile stage.

Answer: A

Question 2: What is the most common parasitic disease in Vietnam today?

A. Malaria.

B. Helminthiasis.

C. Amoebiasis.

D. Trypanosomiasis.

Answer: B

Question 3: How many hosts are needed for a simple life cycle?

A. One.

B. Two.

C. Three.

D. Four.

Answer: A

Question 4: How many definitive hosts are involved in the life cycle of the liver fluke?

A. One.

B. Two.

C. Three.

D. Four.

E. Five.

Answer: A

Question 5: Which of the following parasites can NOT be contracted by eating raw vegetables?

A. Ascaris lumbricoides.

B. Trichomonas vaginalis.

C. Trichuris trichiura.

D. All of the above.

Answer: B

Question 6: Eating uncooked pork can cause which disease?

A. Taeniasis.

B. Paragonimiasis.

C. Dipylidiasis.

D. Fascioliasis.

Answer: A

Question 7: Which of the following parasites can NOT be transmitted through the skin?

A. Trichuris trichiura.

B. Ancylostoma caninum.

C. Strongyloides stercoralis.

D. Diphyllobothrium latum.

Answer: A

Question 8: What type of animal is an intermediate host for helminths?

A. Fly.

B. Fish.

C. Snail.

D. Mosquito.

Answer: C

Question 9: Which parasite has the greatest impact on the whole country?

A. Cysticercus cellulosae. This type of parasite can reproduce in the human body.

B. Clonorchis sinensis.

C. Paragonimus westermani.

D. Helminths.

Answer: D

Question 10: Which of the following is NOT a characteristic of parasitic diseases?

A. Parasitic diseases are common in certain areas.

B. They have a limited duration.

C. They have a sudden onset.

D. They are long-lasting.

Answer: C

Question 11: (Fill in the blank) Parasitic diseases are transmitted by ____. They obtain nutrients from other living organisms for their survival and development. The harm they cause is that the infected organism loses nutrients.

A. Intermediate hosts that transmit the disease.

B. Intermediate hosts that transmit the disease and can also cause the disease.

C. Parasitic pathogens.

D. All of the above.

Answer: B

Question 12: (Fill in the blank) The definitive host is ___

A. An organism that harbors the parasite.

B. An organism that carries the parasite in its reproductive stage.

C. An organism that carries the parasite in its adult stage.

D. An organism that carries the parasite either in its adult stage or its reproductive stage.

Answer: D

Question 13: What is the size of parasites?

A. The size varies depending on the type of parasite.

B. Approximately a few tens of micrometers.

C. Approximately a few meters.

D. Approximately a few centimeters.

Answer: A

Question 14: What is the method of reproduction of parasites?

A. Sexual reproduction.

B. Unisexual reproduction.

C. Asexual reproduction.

D. All of the above.

E. None of the above.

Answer: D

Question 15: For parasites to live, develop and maintain their lineage, they need necessary and sufficient conditions, EXCEPT:

A. Suitable environment.

B. Necessary temperature.

C. Corresponding host and susceptible host.

D. Necessary humidity.

E. The richness of animals, plants, and the living environment has created a suitable population for parasites to develop.

Answer: D

Question 16: Which of the following factors are characteristics of parasitic diseases?

A. Parasitic diseases are common in specific seasons.

B. The disease usually lasts throughout the organism’s lifetime.

C. The disease is common in certain areas.

D. The disease is often reinfected.

E. It usually has a sudden onset.

Answer: C

Question 17: Hookworm and roundworm transmitted through soil belong to what type of cycle?

A. 1

B. 2

C. 3

D. 4

Answer: A

Question 18: Which of the following stages of malaria parasites CANNOT develop in the human body?

A. Ookinete.

B. Merozoite.

C. Gametocyte.

D. Schizont.

Answer: C

Question 19: Which of the following stages of malaria parasites DOES NOT parasitize red blood cells?

A. Ookinete.

B. Trophozoite.

C. Merozoite.

D. Schizont.

Answer: C

Question 20: Which Plasmodium species reproduces most rapidly and abundantly during the erythrocytic cycle?

A. Plasmodium falciparum.

B. Plasmodium malariae.

C. Plasmodium ovale.

D. Plasmodium vivax.

Answer: A

Question 21: Which Plasmodium species is characterized by relapses in Vietnam?

A. Plasmodium vivax.

B. Plasmodium falciparum.

C. Plasmodium berghei.

D. Plasmodium malariae.

Answer: A

Question 22: Which of the following is NOT a measure to address the source of infection in malaria control?

A. Early diagnosis of malaria.

B. Treatment of malaria according to the prescribed regimen.

C. Prophylactic treatment.

D. Treatment to improve the health of malaria patients.

E. Avoid mosquito bites.

Answer: E

Question 23: Which of the following is the best way to protect healthy individuals from malaria?

A. Prophylactic treatment for those at risk of malaria.

B. Environmental modification: clearing bushes around houses, filling in stagnant water ponds, and clearing ditches.

C. Stocking fish and microorganisms to kill larvae.

D. Avoid mosquito bites: use mosquito nets treated with insecticide, use mosquito repellent, wear long-sleeved clothing.

E. Spraying insecticides in the environment.

Answer: D

Question 24: (Fill in the blank) Mosquitoes transmit diseases to humans because ____.

A. Mosquitoes have the habit of both sucking blood and defecating, and their feces contain pathogens.

B. People crush mosquitoes on their skin, and the pathogens from the mosquito’s body fluids enter the body through the wound.

C. When sucking blood, mosquitoes inject saliva containing pathogens into the human skin.

D. Pathogens stick to the mosquito’s legs and wings, falling onto the skin and entering the bloodstream through the bite mark.

E. They cause itching and create an entry point for bacteria to enter.

Answer: C

Question 25: What is required for effective control of arthropods through environmental management?

A. Good knowledge of the environment.

B. Good knowledge of the biology and ecology of the insects being controlled.

C. Careful planning.

D. Coordination with other methods.

E. All of the above.

Answer: B

Question 26: Which of the following is an important condition for fungal growth?

A. Suitable temperature and humidity.

B. Oxygen and suitable humidity.

C. Oxygen and suitable temperature.

D. Suitable temperature and anaerobic conditions.

Answer: D

Question 27: Which of the following is NOT effective in controlling the spread of fungal infections?

A. Isolation of patients.

B. Good personal hygiene.

C. Sterilizing clothes and belongings of the patient.

D. Treating the patient’s waste products.

Answer: C

Question 28: Which of the following methods is best for finding active amoeba?

A. Obtain stool samples from areas containing blood and mucus.

B. Obtain stool samples from stool that has been sitting out for a while.

C. Obtain duodenal fluid.

D. Obtain stool samples from areas containing blood.

Answer: A

Question 29: How many hosts are required for a complex life cycle to complete?

A. 1

B. 2

C. 3

D. 4

Answer: B

Question 30: Which technique is commonly used for diagnosing helminth infections?

A. Stool examination.

B. Blood smear for parasite identification.

C. Imaging diagnosis.

D. Molecular biology.

Answer: A

Question 31: Which of the following is a permanent parasite?

A. Mosquito.

B. Louse.

Answer: B

Question 32: Eating uncooked pork can cause trichinosis.

A. True.

B. False.

Answer: A

Question 33: Houseflies are a type of parasite.

A. True.

B. False.

Answer: B

Question 34: Flies are not considered intermediate hosts for helminths.

A. True.

B. False.

Answer: B

Question 35: To perform their parasitic function, parasites may lose unnecessary parts and develop necessary ones.

A. True.

B. False.

Answer: A

Question 36: Parasitic diseases have a regional prevalence factor.

A. True.

B. False.

Answer: A

Question 37: Plasmodium falciparum is the type of Plasmodium that often causes relapses in Vietnam.

A. True.

B. False.

Answer: B

Question 38: The schizont stage of malaria parasites can develop in mosquitoes.

A. True.

B. False.

Answer: B

Question 39: The gametocyte stage of malaria parasites can develop in humans.

A. True.

B. False.

Answer: B

Question 40: The merozoite stage of malaria parasites can parasitize red blood cells.

A. True.

B. False.

Answer: B

Question 41: Plasmodium has the ability to reproduce both asexually and sexually.

A. True.

B. False.

Answer: A

Question 42: Mosquitoes transmit diseases to humans because when sucking blood, they inject saliva containing pathogens into the human skin.

A. True.

B. False.

Answer: A

Question 43: Anopheles dirus transmits malaria in the lowlands of Vietnam.

A. True.

B. False.

Answer: B

Question 44: Parasitic fungi require a nutrient-rich environment for their growth.

A. True.

B. False.

Answer: B

Question 45: Good personal hygiene is the most effective way to prevent the entry of fungi into the human body.

A. True.

B. False.

Answer: A

Question 46: The characteristic of stools in acute amoebic dysentery is that they are scanty, contain much fresh blood and mucus.

A. True.

B. False.

Answer: A

Question 47: Houseflies are the most dangerous intermediate hosts for amoebic dysentery.

A. True.

B. False.

Answer: A