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Questions and Answers
Which parasite is known as the liver fluke that infects humans and is associated with severe anaemia?
Which parasite is known as the liver fluke that infects humans and is associated with severe anaemia?
What is the method of infection for Fasciolopsis buski?
What is the method of infection for Fasciolopsis buski?
Which trematode is primarily transmitted through the ingestion of raw or pickled fish?
Which trematode is primarily transmitted through the ingestion of raw or pickled fish?
What causes chronic infection with Fasciola hepatica?
What causes chronic infection with Fasciola hepatica?
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Which of the following parasites is primarily associated with crustaceans?
Which of the following parasites is primarily associated with crustaceans?
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What type of parasite completely depends on its host during part or all of its life cycle?
What type of parasite completely depends on its host during part or all of its life cycle?
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Which type of host harbors the adult stage of a parasite?
Which type of host harbors the adult stage of a parasite?
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What describes an organism that can live both parasitically and non-parasitically?
What describes an organism that can live both parasitically and non-parasitically?
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What is the term for a host that does not typically get infected by a parasite but can under certain conditions?
What is the term for a host that does not typically get infected by a parasite but can under certain conditions?
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Which type of parasite is typically found wandering in organs where it is not usually located?
Which type of parasite is typically found wandering in organs where it is not usually located?
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What do you call a host that provides an environment for the parasite but is not adversely affected by it?
What do you call a host that provides an environment for the parasite but is not adversely affected by it?
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Which of the following best describes commensalism?
Which of the following best describes commensalism?
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What is the function of a paratenic host in the life cycle of a parasite?
What is the function of a paratenic host in the life cycle of a parasite?
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What is the term for the relationship where one organism benefits and the other is harmed?
What is the term for the relationship where one organism benefits and the other is harmed?
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Which term describes a relationship where both organisms benefit but the relationship is not obligatory?
Which term describes a relationship where both organisms benefit but the relationship is not obligatory?
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What is the nature of the symbiotic relationship in symbiosis?
What is the nature of the symbiotic relationship in symbiosis?
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Which of the following is an example of an ectoparasite?
Which of the following is an example of an ectoparasite?
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What does the term 'Phoresis' refer to?
What does the term 'Phoresis' refer to?
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Which type of organism is classified as metazoa?
Which type of organism is classified as metazoa?
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Which relationship is characterized as involving a parasite that lives within another organism?
Which relationship is characterized as involving a parasite that lives within another organism?
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What does the study of Parasitology primarily focus on?
What does the study of Parasitology primarily focus on?
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Which of the following pairs represents a mutualistic relationship?
Which of the following pairs represents a mutualistic relationship?
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What term refers to unicellular organisms, such as those causing malaria?
What term refers to unicellular organisms, such as those causing malaria?
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What is the estimated prevalence of Ascaris in the world?
What is the estimated prevalence of Ascaris in the world?
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Which of the following parasites is NOT a soil-transmitted helminth?
Which of the following parasites is NOT a soil-transmitted helminth?
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What disease is primarily caused by hookworms?
What disease is primarily caused by hookworms?
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What is a common symptom of Trichuris infection in heavily infected individuals?
What is a common symptom of Trichuris infection in heavily infected individuals?
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Which parasite is particularly severe in immunosuppressed individuals?
Which parasite is particularly severe in immunosuppressed individuals?
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Which of the following parasites is predominantly found in children?
Which of the following parasites is predominantly found in children?
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What is a common transmission route for Trichuris?
What is a common transmission route for Trichuris?
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Which of the following parasites can cause significant morbidity due to chlorinated water exposure?
Which of the following parasites can cause significant morbidity due to chlorinated water exposure?
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What is the estimated global prevalence of malaria?
What is the estimated global prevalence of malaria?
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Which of the following is NOT a symptom associated with strongyloidiasis?
Which of the following is NOT a symptom associated with strongyloidiasis?
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What is the main source of infection for Taenia saginata?
What is the main source of infection for Taenia saginata?
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Which of the following diseases can result from Taenia solium?
Which of the following diseases can result from Taenia solium?
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What organism is primarily responsible for transmitting Onchocerca volvulus?
What organism is primarily responsible for transmitting Onchocerca volvulus?
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What kind of organisms are Echinococcus granulosus and Echinococcus multilocularis?
What kind of organisms are Echinococcus granulosus and Echinococcus multilocularis?
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Which systemic disease is caused by Wuchereria bancrofti?
Which systemic disease is caused by Wuchereria bancrofti?
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Hydatid disease occurs when larval stages of Echinococcus are ingested by which of the following hosts?
Hydatid disease occurs when larval stages of Echinococcus are ingested by which of the following hosts?
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What is a symptom associated with Onchocerca volvulus infection?
What is a symptom associated with Onchocerca volvulus infection?
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How is infection from Toxocara commonly acquired?
How is infection from Toxocara commonly acquired?
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Where do the larvae of Taenia solium typically encyst in humans?
Where do the larvae of Taenia solium typically encyst in humans?
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What type of nematodes includes Brugia malayi?
What type of nematodes includes Brugia malayi?
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Study Notes
Liver Fluke
- Fasciola hepatica is the liver fluke that infects humans and is associated with severe anemia.
Fasciolopsis buski infection
- Fasciolopsis buski infection occurs through the ingestion of water chestnuts, water caltrop, and other aquatic plants contaminated with metacercariae.
Fish-borne Trematode
- Clonorchis sinensis is a trematode primarily transmitted through the ingestion of raw or pickled fish containing metacercariae.
Chronic Fasciola hepatica Infection
- Chronic infection with Fasciola hepatica is caused by the adult fluke residing in the bile ducts, leading to inflammation, fibrosis, and biliary obstruction.
Crustacean-associated Parasite
- Paragonimus westermani, a lung fluke, is primarily associated with crustaceans.
Parasite Life Cycle Dependence
- Obligate parasites completely depend on their host during part or all of their life cycle.
Adult Stage Host
- The definitive host harbors the adult stage of a parasite.
Parasitic and Non-Parasitic Life
- Facultative parasites can live both parasitically and non-parasitically.
Accidental Host
- A paratenic host is an organism that does not typically get infected by a parasite but can under certain conditions.
Wandering Parasite
- An erratic parasite is typically found wandering in organs where it is not usually located.
Non-Affected Host
- A transport host provides an environment for the parasite but is not adversely affected by it.
Commensalism
- Commensalism is a symbiotic relationship where one organism benefits and the other is neither harmed nor benefited.
Paratenic Host Role
- A paratenic host serves as a temporary host where the parasite does not undergo any development but is transported to another host.
Parasitism
- Parasitism is a relationship where one organism (the parasite) benefits at the expense of another organism (the host).
Mutualism
- Mutualism describes a relationship where both organisms benefit, and the relationship is not obligatory.
Symbiotic Relationship
- Symbiosis refers to a relationship where two organisms live together in close association, with diverse outcomes for each organism.
Ectoparasite Example
- A tick is an example of an ectoparasite, as it lives on the external surface of its host.
Phoresis
- Phoresis describes a relationship where one organism attaches to another organism for transportation without causing harm.
Metazoa
- Metazoa are multicellular animals, including parasites.
Endoparasite
- An endoparasite lives within another organism.
Parasitology Focus
- Parasitology is the study of parasites, their hosts, and their relationship.
Mutualistic Relationship
- Cleaner fish and larger fish represent a mutualistic relationship, where the cleaner fish eats parasites off the larger fish, benefiting both.
Unicellular Organisms
- Protozoa are unicellular organisms, such as those causing malaria.
Ascaris Prevalence
- Ascaris is estimated to infect approximately 1.5 billion people worldwide.
Non-Soil-Transmitted Helminth
- Schistosoma mansoni is not a soil-transmitted helminth.
Hookworm Disease
- Hookworms primarily cause anemia, malnutrition, and impaired cognitive development.
Trichuris Infection Symptom
- In heavily infected individuals, Trichuris can cause rectal prolapse.
Immunosuppressed Individuals
- Strongyloides stercoralis infection can be particularly severe in immunosuppressed individuals.
Predominant Children's Parasite
- Ascaris lumbricoides is predominantly found in children.
Trichuris Transmission
- Trichuris is typically transmitted through fecal-oral contamination.
Chlorinated Water Morbidity
- Cryptosporidium parvum can cause significant morbidity due to exposure to chlorinated water.
Malaria Prevalence
- The estimated global prevalence of malaria is approximately 241 million cases.
Strongyloidiasis Symptom Exclusion
- Hepatitis is NOT a symptom associated with strongyloidiasis.
Taenia saginata Infection Source
- Undercooked beef is the main source of infection for Taenia saginata.
Taenia solium Resulting Diseases
- Taenia solium can result in neurocysticercosis, a condition characterized by cysticerci (larval stages) in the brain.
Onchocerca volvulus Transmission
- Blackflies are primarily responsible for transmitting Onchocerca volvulus.
Echinococcus granulosus and Echinococcus multilocularis
- Echinococcus granulosus and Echinococcus multilocularis are cestodes (tapeworms).
Wuchereria bancrofti Disease
- Lymphatic filariasis, characterized by hydrocele, elephantiasis, and lymphedema, is caused by Wuchereria bancrofti.
Hydatid Disease Host
- Hydatid disease occurs when larval stages of Echinococcus are ingested by humans.
Onchocerca volvulus Infection Symptom
- River blindness, a condition causing severe eye damage and eventually blindness, is a symptom associated with Onchocerca volvulus infection.
Toxocara Infection Acquisition
- Infection with Toxocara is commonly acquired through ingestion of soil or sand contaminated with infected dog or cat feces.
Taenia solium Larval Encystment
- Larvae of Taenia solium typically encyst in human muscles, especially skeletal muscles.
Brugia malayi Type
- Brugia malayi is a filarial nematode, meaning It is a type of roundworm that is characterized by long, thin, thread-like bodies.
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Description
This quiz explores the various types of parasites and the concept of parasitism, where one organism lives at the expense of another. Learn about ectoparasites, endoparasites, and their classifications. Understand the differences between obligate, facultative, accidental, and erratic parasites.