Lab 1-Plasmodium Flashcards
What disease does plasmodium cause?
Malaria
Insect vector of plasmodium?
Female mosquitoes and other blood-feeding arthropods
Mian target cell of plasmodium?
Red blood cell
What are sporozoites?
daughter cell from a sporogony w/n oocyst
Where do sporozoites stay in mosquitoes?
Salivary gland
Exoerythrocytic cycle
occurs when sporozoite enters hepatocyte and asexually reproduces into merozoites
Erythrocytic cycle
merozoites penetrate the RBC and asecually multiplies
Erythrocytic schizogony
asexual reproduction marked by many mitoses and cytokinesis producing many daughter cells, occurs in the RBC
Microgamete
male gamete
Macrogamete
female gamete
Exflagellation
Microgametocytes undergo nuclear division and form microgametes that are surrounded by flagellum
Ookinete
zygote formed after fertilization of macrogamete by microgamete
Oocyst
ookinete develops into this after penetrating gut wall of mosquito
What does the oocyst produce?
Sporozoites
In host-parasite relationships, distinction between definitive and intermediate host is usually made based on where __ __ takes place
Sexual reproduction
Where do the sex stages occur in Plasmodium?
vertebrate host
Where does fertilization occur in plasmodium?
insect vector
What are metacryptozoites?
Merozoites that are produced in the liver that have undergone nuclear division, but not cytokinesis
What are trophozoites?
non-reproductive, feeding stage of Protozoa
Ring stage in trophozoites?
- occurs in young trophozoites
- has a central vacuole that looks like a ring
What side does an ookinete develop into oocyst?
hemocoele side (between gut and body cavity)
What example genus are we studying for Apicomplexa?
Plasmodium
What distinguishes P. vivax from other Plasmodium species?
Schuffner’s dots
