30 Questions
Which of the following is a characteristic of protozoans?
They are aerobic and free living.
Which of the following is a characteristic of pathogenic protozoa?
They are motile.
Which of the following is a characteristic of Plasmodia species?
They infect red blood cells.
Which of the following is a characteristic of Babesia microti?
It is a blood parasite.
Which protozoan grouping is characterized by free-living organisms that feed by phagocytosis and move by extending pseudopodia?
Amoebas
Which protozoan grouping is characterized by organisms that have whip-like projections called flagella and feed by cytostome?
Flagellates
Which protozoan grouping is characterized by organisms that move by means of hair-like projections and feed by way of a cytostome groove?
Ciliates
Which protozoan grouping is characterized by obligate intracellular parasites that possess a unique organelle called an apicoplast and an apical complex structure involved in penetrating a host's cell?
Apicomplexans
Which species of Plasmodium is most likely to result in death if left untreated?
P. falciparum
Which species of Plasmodium can infect erythrocytes of all ages?
P. falciparum
Which species of Plasmodium is associated with relapses from the liver?
P. vivax
Which species of Plasmodium is characterized by the presence of Schuffner dots?
P. vivax
Which Plasmodium species is characterized by infected cells with Schüffner dots and ragged cell walls?
P. ovale
Which Plasmodium species is known to cause kidney damage (blackwater fever)?
P. falciparum
Which Plasmodium species selectively infects reticulocytes and accumulates in the bone marrow and liver?
P. vivax
Which Plasmodium species has bar and band forms, with schizonts composed of eight merozoites in a rosette surrounding a pigment granule?
P. malariae
Which of the following is the vector responsible for spreading Malaria?
Anopheles mosquito
Which Plasmodium species is known to cause kidney necrosis and failure?
P. falciparum
Which Plasmodium species produces hypnozoites in the liver that can remain dormant and recur months later?
P. vivax
Which of the following is true about the life cycle of Apicomplexans?
Gametogony results in the production of gametocytes
Which of the following is a risk factor for a Babesia microti and Babesia duncani infection in terms of regional prevalence and transmission vector or natural reservoir?
Being bitten by an infected tick
Which of the following is a diagnostic test result for Babesia?
Fluorescent Antibody detection (IFA)
Which of the following is a clinical presentation of Leishmaniasis?
Destruction of mucous membranes
Can babesiosis be transmitted by transfusion in areas where it's not spread by ticks?
Yes, because individuals who donate blood travel and blood products are shipped around the country
Which drug is still the drug of choice against all five species of Plasmodium, despite the emergence of drug resistance?
Chloroquine
Which proposed mechanism of action involves binding to deoxyribonucleic acid (DNA) and interfering with DNA replication?
Binding to ferriprotoporphyrin IX released from hemoglobin in infected erythrocytes
Which drug accumulates in tissue cells and destroys the extra-erythrocytic (hepatic) stages of malaria, resulting in a radical cure of the infection?
Primaquine
Which proposed mechanism of action involves raising the pH of the parasite's intracellular acid vesicles, thus interfering with its ability to degrade hemoglobin?
Raising the pH of the parasite's intracellular acid vesicles
Which drug has a proposed mechanism of action involving the ability to form a nitro-anion radical metabolite, which reacts with the nucleic acids of the parasite, causing a significant breakage in the DNA?
Nifurtimox
Which drug destroys the erythrocytic stage of malaria and may be used prophylactically to suppress clinical illness or therapeutically to terminate an acute attack?
Chloroquine
Quiz: Recognizing the Symptoms and Risks of Leishmaniasis Test your knowledge about leishmaniasis with this informative quiz. Learn about the various symptoms, including skin pigmentation, mucocutaneous lesions, and kidney damage. Understand the geographical locations where certain species are prevalent. Discover the potential complications such as post-Kala-azar dermal leishmaniasis and secondary bacterial infections. Enhance your understanding of this tropical disease and its impact on human health.
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