The Ultimate Parasitology Trivia Quiz

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The Ultimate Parasitology Trivia Quiz - Quiz

Have you been studying parasitology? How much do you know about it? Ready for the ultimate parasitology trivia quiz? Parasitology deals with the study of parasites, their hosts, as well as the relationship among them. As a biological discipline, the means of parasitology is not decided by the organism or environment but by their way of life. These trivia questions will be fun and let you learn more about parasites. Let's go!


Questions and Answers
  • 1. 

    African Sleeping Sickness is transmitted by a bite of the tsetse fly.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    African Sleeping Sickness is caused by a parasite called Trypanosoma brucei, which is transmitted to humans through the bite of infected tsetse flies. These flies are commonly found in rural areas of sub-Saharan Africa. The parasite enters the bloodstream and eventually invades the central nervous system, leading to symptoms such as fever, headaches, and sleep disturbances. Therefore, the statement that African Sleeping Sickness is transmitted by a bite of the tsetse fly is true.

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  • 2. 

    After several weeks, pairs of adult flukes move to the vein of the intestines or bladder and remain locked together, copulating for 10 years or more. Eggs released may be excreted via the stool or urine. The life cycle is completed when eggs are released into freshwater.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given statement is true. The explanation is that after several weeks, adult flukes move to the vein of the intestines or bladder and copulate for 10 years or more. The eggs released by the flukes can be excreted through the stool or urine. The life cycle of the flukes is completed when the eggs are released into freshwater.

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  • 3. 

    Bloodstream Protozoa infections typically cause anemia by destroying red blood cells.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Bloodstream protozoa infections typically cause anemia by destroying red blood cells. This is because protozoa invade and multiply within the red blood cells, leading to their destruction and reducing the number of functional red blood cells. As a result, the body's ability to transport oxygen to tissues is compromised, leading to anemia.

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  • 4. 

    Diagnosis of a parasitic infection is based on

    • A.

      The toxins they release

    • B.

      Their cellular components

    • C.

      Identifying the parasites themselves or their progeny

    • D.

      None of these

    Correct Answer
    C. Identifying the parasites themselves or their progeny
    Explanation
    The correct answer is identifying the parasites themselves or their progeny. This is because the diagnosis of a parasitic infection involves directly identifying the parasites or their offspring in the patient's body. This can be done through various methods such as microscopic examination of bodily fluids or tissues, serological tests, or molecular techniques. The presence of parasites or their progeny confirms the diagnosis of a parasitic infection. The other options, toxins they release and their cellular components, may be used to study the characteristics of the parasites but are not the primary method of diagnosis.

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  • 5. 

    Extracellular protozoa are usually spread by a vector.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Extracellular protozoa are not usually spread by a vector. Protozoa are single-celled organisms that can be found in various environments, including in the soil, water, and as parasites in animals. While some protozoa can be transmitted through vectors, such as mosquitoes carrying malaria parasites, the statement specifically refers to extracellular protozoa. These types of protozoa are not typically dependent on vectors for their spread and can be transmitted through direct contact or ingestion of contaminated food or water. Therefore, the correct answer is false.

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  • 6. 

    Flukes are tissue helminths that are not

    • A.

      Penetrate skin

    • B.

      Emerge from snails that swim in water

    • C.

      Mature outside of the venous system

    • D.

      Lose their tails and change into a form that can enter the bloodstream after they burrow in the skin

    Correct Answer
    C. Mature outside of the venous system
    Explanation
    Flukes are tissue helminths that mature outside of the venous system. This means that they do not complete their development inside the blood vessels. Instead, they go through their life cycle outside of the veins, typically in other organs or tissues of the host. This is in contrast to some other parasites that may mature and reproduce within the bloodstream itself.

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  • 7. 

    Helminths are...

    • A.

      Worms

    • B.

      Typically intracellular

    • C.

      Transmitted by oral ingestion, penetration of broken skin, or arthropod bite

    • D.

      Many live in the GI tract but can infect internal organs

    • E.

      Usually are able to complete life cycle within a single host

    • F.

      Disease is directly related to the number of parasites acquired

    Correct Answer(s)
    A. Worms
    C. Transmitted by oral ingestion, penetration of broken skin, or arthropod bite
    D. Many live in the GI tract but can infect internal organs
    F. Disease is directly related to the number of parasites acquired
    Explanation
    Helminths are worms that can be transmitted through oral ingestion, penetration of broken skin, or arthropod bite. While many of them live in the gastrointestinal (GI) tract, they can also infect internal organs. They usually complete their life cycle within a single host. The severity of the disease caused by helminths is directly related to the number of parasites acquired.

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  • 8. 

    How is toxoplasma acquired? 1) eating undercooked meat 2) food with contaminated cat feces 3) coming in contact with infected water

    • A.

      1

    • B.

      1,2

    • C.

      1,2,3

    • D.

      1,2,3,4

    Correct Answer
    B. 1,2
    Explanation
    Toxoplasma can be acquired by eating undercooked meat or consuming food that has been contaminated with cat feces. Eating undercooked meat can expose individuals to the parasite if the meat comes from an infected animal. Additionally, contact with contaminated cat feces can also lead to infection if proper hygiene measures are not followed. Therefore, the correct answer includes options 1 and 2.

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  • 9. 

    Humans become infected with tapeworms when they eat beef with the eggs that have hatched in the intestines, and vice versa.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    This statement is true because tapeworms can be transmitted to humans through the consumption of beef that is contaminated with the eggs of the tapeworm. When these eggs hatch in the intestines, the tapeworms can then infect humans. Similarly, humans can also transmit tapeworms to animals if they consume contaminated human feces or if they have poor hygiene practices. Therefore, the statement is correct in stating that humans can become infected with tapeworms when they eat beef with the hatched eggs in the intestines, and vice versa.

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  • 10. 

    In red blood cells, malaria divide and matures. Then they burst to release more parasites to infect new red blood cells. Some of the parasites in the bloodstream are able to reproduce sexually, which are then

    • A.

      Taken up by biting mosquitos

    • B.

      Spread throughout the body and into the lungs

    • C.

      Left by biting mosquitos

    • D.

      No longer need to reproduce in red blood cells

    Correct Answer
    A. Taken up by biting mosquitos
    Explanation
    The correct answer is "taken up by biting mosquitos". This is because the passage states that some of the parasites in the bloodstream are able to reproduce sexually. These parasites are then taken up by biting mosquitos, which allows them to spread and infect new hosts. Therefore, this option accurately describes the next step in the life cycle of the malaria parasite.

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  • 11. 

    In the mosquito, Malaria goes to the salivary glands as __________ during the infectious stage and then enters the liver cells of the host.

    • A.

      Sporozoites

    • B.

      Plasmodium

    • C.

      Spores

    • D.

      Merozoites

    Correct Answer
    A. Sporozoites
    Explanation
    During the infectious stage of Malaria in mosquitoes, the Malaria parasite, Plasmodium, goes to the salivary glands as sporozoites. These sporozoites are then injected into the bloodstream of the host when the mosquito bites, and they eventually enter the liver cells where they multiply and cause the disease.

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  • 12. 

    Intestinal Helminths are acquired by

    • A.

      Ingestion of eggs

    • B.

      Direct penetration of larvae through skin

    • C.

      Both

    • D.

      Neither

    Correct Answer
    C. Both
    Explanation
    Intestinal helminths can be acquired through both ingestion of eggs and direct penetration of larvae through the skin. Some helminths, such as roundworms and tapeworms, release eggs in the host's feces, which can contaminate the environment and be ingested by another host. On the other hand, certain helminths, like hookworms, have larvae that can penetrate the skin of humans when they come into contact with contaminated soil or water. Therefore, both routes of acquisition are possible for intestinal helminths.

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  • 13. 

    Intestinal Helminths are often asymptomatic unless the worm burden is very large. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Intestinal helminths are parasitic worms that infect the intestines. This statement suggests that these infections usually do not cause noticeable symptoms unless there is a high number of worms present in the body. This is because a small number of worms may not cause significant damage or provoke a noticeable immune response. However, when the worm burden is very large, it can lead to symptoms such as abdominal pain, diarrhea, weight loss, and anemia. Therefore, the statement is true.

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  • 14. 

    Intestinal Helminths can cause malnutrition in the host.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Intestinal helminths, which are parasitic worms that reside in the intestines, can indeed cause malnutrition in the host. These worms feed on the nutrients present in the host's intestines, leading to a reduced absorption of essential nutrients such as vitamins, minerals, and proteins. As a result, the host may suffer from malnutrition, which can have detrimental effects on their overall health and well-being. Therefore, the statement "Intestinal Helminths can cause malnutrition in the host" is true.

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  • 15. 

    Intestinal helminths reproduce asexually.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Intestinal helminths do not reproduce asexually. They are multicellular parasites that reproduce sexually. They have complex life cycles that involve both sexual and asexual reproduction stages. In their sexual reproduction stage, they produce eggs that are released into the environment through the feces of the infected host. These eggs then develop into larvae, which can infect new hosts and continue the life cycle. Therefore, the correct answer is false.

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  • 16. 

    Intracellular protozoa are usually spread by the fecal oral route.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Intracellular protozoa are usually spread by other means, such as through vectors like mosquitoes or ticks, or through direct contact with infected bodily fluids. The fecal-oral route is more commonly associated with the spread of certain bacteria and viruses. Therefore, the statement that intracellular protozoa are usually spread by the fecal-oral route is false.

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  • 17. 

    Most protozoa have extracellular  stages during the lifecycle. Most protozoa have extracellular  stages during the lifecycle.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because most protozoa do not have extracellular stages during their lifecycle. Protozoa are single-celled organisms that typically live and carry out all their functions within a single cell. They do not have distinct extracellular stages like some other organisms, such as parasites or fungi. Therefore, the correct answer is false.

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  • 18. 

    Most tapeworm infections are asymptomatic. However, they can lead to vitamin deficiency and anemia and can cause severe CNS manifestations.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Tapeworm infections are often symptomless, meaning that individuals infected with tapeworms may not experience any noticeable symptoms. However, these infections can still have negative effects on the body. Tapeworms can lead to vitamin deficiency and anemia, which can cause weakness and fatigue. Additionally, severe central nervous system (CNS) manifestations can occur as a result of tapeworm infections, potentially leading to neurological symptoms such as seizures or cognitive impairment. Therefore, the statement that most tapeworm infections can lead to vitamin deficiency, anemia, and severe CNS manifestations is true.

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  • 19. 

    Parasite infection is short and only occurs once. 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Parasite infection is not always short and can occur multiple times. Some parasites have complex life cycles and can persist in the host for extended periods, causing chronic infections. Additionally, certain parasites can be transmitted through various routes, such as contaminated food or water, making reinfection possible. Therefore, the statement that parasite infection is short and only occurs once is incorrect.

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  • 20. 

    Parasites require only one type of host to complete their lifecycle.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Parasites typically require more than one type of host to complete their lifecycle. They often have complex life cycles that involve multiple hosts, such as intermediate hosts and definitive hosts. These hosts provide different environments or resources that the parasite needs at different stages of its life. Therefore, the statement that parasites require only one type of host to complete their lifecycle is false.

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  • 21. 

    Protozoa are...

    • A.

      Multiple cell eukaryotes

    • B.

      Require a large inocula

    • C.

      Disease results from replication of a large number of parasites

    • D.

      Can be intracellular or extracellular

    Correct Answer(s)
    C. Disease results from replication of a large number of parasites
    D. Can be intracellular or extracellular
    Explanation
    Protozoa are single-celled eukaryotes that can cause diseases by replicating in large numbers within the host. This replication leads to the accumulation of a large number of parasites, which can result in the development of various diseases. Additionally, protozoa have the ability to exist both inside and outside of host cells, making them capable of causing intracellular or extracellular infections.

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  • 22. 

    Symptoms of toxoplasmosis are

    • A.

      Mononucleosis-like syndrome

    • B.

      Congenital infection

    • C.

      Infections in the brain or heart in immunocompromised

    • D.

      Gastrointestinal distress

    Correct Answer(s)
    A. Mononucleosis-like syndrome
    B. Congenital infection
    C. Infections in the brain or heart in immunocompromised
    Explanation
    Toxoplasmosis is a parasitic infection caused by the Toxoplasma gondii parasite. The symptoms of toxoplasmosis can vary depending on the individual's immune system and the stage of infection. One of the common symptoms is a mononucleosis-like syndrome, which includes symptoms such as fatigue, fever, sore throat, and swollen lymph nodes. Additionally, toxoplasmosis can also lead to congenital infections if a pregnant woman becomes infected, causing potential harm to the fetus. In immunocompromised individuals, the infection can spread to the brain or heart, leading to symptoms specific to those organs. Gastrointestinal distress can also be a symptom of toxoplasmosis, although it is not as commonly associated with the infection.

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  • 23. 

    The reason parasites infect humans is for development. 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Parasites do not infect humans for their own development. Instead, parasites infect humans in order to obtain nutrients and resources necessary for their survival and reproduction. This relationship is often harmful to the human host, as it can lead to various diseases and health issues. Therefore, the given statement is false.

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  • 24. 

    Their are 5 species of parasites that cause malaria.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    There are actually more than 5 species of parasites that cause malaria. The most common and well-known species is Plasmodium falciparum, but there are also other species such as Plasmodium vivax, Plasmodium malariae, Plasmodium ovale, and Plasmodium knowlesi that can cause the disease. Therefore, the statement that there are only 5 species of parasites that cause malaria is false.

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  • 25. 

    There are often no clinical symptoms associated with worm infections.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Worm infections often do not show any clinical symptoms, meaning that infected individuals may not experience any noticeable signs or indications of the infection. This can make it difficult to detect and diagnose worm infections, as individuals may be unaware that they are infected. Therefore, the statement "There are often no clinical symptoms associated with worm infections" is true.

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  • 26. 

    Toxoplasma invades bloodstream after it penetrates the gut wall, and remains only in the bloodstream. 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Toxoplasma does not remain only in the bloodstream after it penetrates the gut wall. Instead, it primarily infects and replicates within cells of the immune system, such as macrophages and dendritic cells. It can also invade other tissues and organs, including the brain, muscles, and eyes. Therefore, the statement that Toxoplasma remains only in the bloodstream is false.

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  • 27. 

    Toxoplasma parasites form tissue cysts that are dormant unless a person becomes immunosuppressed in the future. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Toxoplasma parasites have the ability to form tissue cysts that can remain dormant in a person's body. These cysts can stay inactive unless the person's immune system becomes weakened or suppressed in the future. When a person becomes immunosuppressed, the dormant parasites can reactivate and cause illness. Therefore, the statement that toxoplasma parasites form tissue cysts that are dormant unless a person becomes immunosuppressed in the future is true.

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  • 28. 

    What are the characteristics of Pathogenesis of the African Sleeping Sickness parasite?

    • A.

      Systemic illness develops with fever after weeks or months after bite

    • B.

      Parasite not present in bloodstream

    • C.

      Patients have bouts of parasitemia, after which the dominant surface antigen changes

    • D.

      Months to years after bite, parasites invade CNS, Brain and spinal fluid

    • E.

      Not usually fatal

    • F.

      Drugs are not available for systemic stage

    Correct Answer(s)
    A. Systemic illness develops with fever after weeks or months after bite
    C. Patients have bouts of parasitemia, after which the dominant surface antigen changes
    D. Months to years after bite, parasites invade CNS, Brain and spinal fluid
    Explanation
    The African Sleeping Sickness parasite causes a systemic illness characterized by fever that develops weeks or months after a bite. The parasite is not present in the bloodstream but patients experience bouts of parasitemia, during which the dominant surface antigen changes. Months to years after the bite, the parasites invade the central nervous system, brain, and spinal fluid. Although the disease is not usually fatal, there are currently no drugs available for the systemic stage of the illness.

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  • 29. 

    What symptoms of schistosomiasis?

    • A.

      Rash

    • B.

      Fever, chills, cough

    • C.

      Wheezing

    • D.

      Diarrhea

    • E.

      Obstruction of blood glow

    • F.

      Loss of bladder

    • G.

      Organ failure

    • H.

      Brain damage

    • I.

      Blindness

    Correct Answer(s)
    A. Rash
    B. Fever, chills, cough
    C. Wheezing
    D. Diarrhea
    E. Obstruction of blood glow
    F. Loss of bladder
    G. Organ failure
    Explanation
    Schistosomiasis is a parasitic infection caused by schistosomes. The symptoms of schistosomiasis include a rash, fever, chills, cough, wheezing, diarrhea, obstruction of blood flow, loss of bladder control, organ failure, brain damage, and blindness. These symptoms occur as a result of the parasites invading the body's tissues and organs, leading to inflammation and damage. The severity of symptoms can vary depending on the extent of the infection and the immune response of the individual.

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  • 30. 

    Which describes roundworm characteristics?

    • A.

      Eggs require warm environment

    • B.

      Infection in warm climates

    • C.

      Eggs hatch in water

    • D.

      Transmission is exposure of skin to feces or water

    Correct Answer(s)
    A. Eggs require warm environment
    B. Infection in warm climates
    Explanation
    Roundworms, also known as nematodes, have a life cycle that includes the requirement of a warm environment for their eggs to develop and hatch. This means that roundworm eggs need a certain temperature range to survive and develop into infective larvae. Additionally, roundworm infection is more common in warm climates, as the conditions are favorable for the growth and transmission of these parasites. Therefore, the given answer accurately describes the characteristics of roundworms.

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  • 31. 

    Which describes tapeworms?

    • A.

      Long and ribbon like

    • B.

      Composed of circular segments

    • C.

      Each segment needs the other inorder to reproduce, metabolize, and consume food

    • D.

      Meraphroditic

    Correct Answer(s)
    A. Long and ribbon like
    D. Meraphroditic
    Explanation
    Tapeworms are described as long and ribbon-like because they have a flat, segmented body that can grow to several meters in length. They are also hermaphroditic, meaning each individual has both male and female reproductive organs, allowing them to self-fertilize and produce offspring without the need for a mate.

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  • 32. 

    With malaria, the parasite multiplies in the liver and is released back into the bloodstream as ____________  when liver cells rupture which then enters red blood cells. 

    • A.

      Merozoites

    • B.

      Sporozoites

    • C.

      Plasmodium

    • D.

      Spores

    Correct Answer
    A. Merozoites
    Explanation
    Merozoites are the form of the malaria parasite that multiplies in the liver and is released into the bloodstream when liver cells rupture. Once in the bloodstream, merozoites invade red blood cells. Sporozoites are the form of the parasite that is injected into the bloodstream by infected mosquitoes. Plasmodium is the genus of parasites that cause malaria. Spores are reproductive cells found in certain organisms, but they are not involved in the life cycle of the malaria parasite.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Aug 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 13, 2011
    Quiz Created by
    Hsilverstein124
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