BIO 121 Lecture Notes - Lecture 31: Acrasidae, Meiosis, Oomycete

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The sporozoans: phylum apicomplexa (nonmotile parasites) the phylum name describes the unique apical complex of organelles their common name recognizes they form spores at some point in their life cycle. Pneumocystis carinii causes the pneumonia seen primarily in aids patients. Plasmodium vivax causes one type of malaria; it is the most widespread human parasite. After bite of infected female anopheles mosquito, the parasite eventually invades red blood cells. Chills and fever appear as red blood cells burst and release toxin into the blood. Malaria remains a major world disease due to insecticide-resistant strains of mosquitoes and drugresistant strains of plasmodium. Toxoplasma gondii causes toxoplasmosis, particularly in cats but also in humans in pregnant women, the parasite can infect the fetus and cause birth defects in aids patients, it can infect the brain and cause neurological symptoms. The slime molds and water molds these organisms resemble fungi but all have flagellated cells that fungi never have.