UAMS Parasitology Exam 4 Questions & Answers 2024/2025
They are unicellular, eukaryotic, no organelles for movement due to them being intracellular and carried by RBCs, and participate in both asexual and sexual reproduction. - ANSWERSWhat are the general characteristics of sporozoans?
1. A...
They are unicellular, eukaryotic, no organelles for movement due to them being intracellular and carried
by RBCs, and participate in both asexual and sexual reproduction. - ANSWERSWhat are the general
characteristics of sporozoans?
1. Asexual portion - Schizogony - results in the production of merozoites and is the only part of the life
cycle that occurs in the intermediate host, humans. 2. Sexual - Gametogony - results in the production of
zygotes and occurs in the definitive host. 3. Sexual - Sporogony - results in the production of sporozoites
and occurs in the definitive host. - ANSWERSWhat is the sporozoan life cycle?
Sporozoites - ANSWERSWhat is the infectious part of the sporozoan life cycle to humans?
Obligate intracellular parasite. They have to be inside RBCs to survive. Than they can be in the liver for a
little while but eventually have to live in RBCs. - ANSWERSWhat term can be used to describe
Plasmodium species?
Anopheles mosquito. - ANSWERSWhat is the vector for plasmodium species?
Intermediate is human and definitive is mosquito. Malaria. - ANSWERSWhat is the intermediate host and
definitive host for plasmodium species? What disease is associated with plasmodium species?
Exo-erythrocytic - occurs in the liver; starts with mosquito taking blood meal and injecting sporozoites
into the bite wound, schizogony occurs and results in merozoites.
Erythrocytic - occurs in the peripheral blood; results in gametocytes. - ANSWERSWhat are the
plasmodium stages of development?
Sporozoites, sporozoites injected into bite wound on human, trophs, schizonts, or gametocytes, and ID
trophs, schizonts, or gametocytes in PB smear - ANSWERSWhat is the plasmodium species infective
stage, method of infection, diagnostic stage, and method of diagnosis?
, P. falciparum - ANSWERSWhich plasmodium species is most severe and most drug resistant?
P. falciparum, tertian. - ANSWERSWhich plasmodium species has a fever spike every 36-48 hours and
what is this called?
Schizont - ANSWERSWhat is rare to see in the PB smear for P. falciparum?
P. falciparum - ANSWERSWhich plasmodium species is very sticky and can cause vessel blockage?
P. falciparum and P. knowlesi - ANSWERSWhich plasmodium species does not have an RBC age
preference?
P. falciparum - ANSWERSWhich plasmodium species has multiple rings per RBC, double chromatin dots,
appliques forms, and maurer's dots?
P. falciparum - ANSWERSWhich plasmodium species has crescent shaped gametocytes?
P. malariae - ANSWERSWhich plasmodium species likes older RBCs?
P. malariae - ANSWERSWhich plasmodium species has a rosette formation and hemozoin?
P. malariae - ANSWERSWhich plasmodium species has one ring per RBC, one chromatin dot, bands form
present, and thick rings or basket forms?
P. vivax and P. ovale - ANSWERSWhich plasmodium species have a dormancy phase that can give a false
negative of disease and then re-establish infection?
P. vivax - ANSWERSWhich plasmodium species prefers younger RBCs?
P. vivax and P. ovale - ANSWERSWhich plasmodium species have schuffner's dots?
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