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Found Protozoan 30 times.

Displaying results 1 to 10.

1. Activated sludge process
A method of treating sewage and wastewater through microbial oxidation. Sewage previously treated in settling tanks is aerated to encourage the growth of nonpathogenic aerobic microorganisms ( bacteria , yeast s, molds and protozoans) which break the organic matter down into carbon dioxide, water, and simple salts. After this activated sludge is produced, the wastewater undergoes further processing through anaerobic digestion, filtering, and chlorination.

2. Amebiasis (amebic dysentery)
Amebiasis is an infection with amoebas (a type of protozoan), particularly Entamoeba histolytica. The disease is contracted by eating food or drinking water that has been infected with encysted forms of the amoebas. The symptoms include diarrhea, weakness, and sometimes jaundice. During the course of the disease, sores and abscesses form on the mucous membrane of the large intestine (sometimes causing perforations), and the abscesses may be carried to the liver via the portal vein. Patients are usually treated with drugs called metronidazole (Flagyl) and chloroquinine; they may need to be medicated for up to three months to clear the infection.

3. Cyclospora cayetanensis
Cyclospora cayetanensis is an acid-fast , coccidian-like, parasitic protozoan with the size of 8-10 micrometer in diameter. Cyclospora cayetanesis was recently recognized as a new (intestinal) protozoan pathogen of human (1993, species name was proposed in 1994) and was identified as the cause of the prolonged diarrhea of travelers as well as immunocompetent and immunocompromised patients.

4. Dumposome
A protein , possibly even a new organelle , found in the one-celled ciliated protozoan "tetrahymena," an organism which contains two nuclei (unlike most other organisms which only contain one) - the macronucleus and the micronucleus . During sexual reproduction , in which two tetrahymena fuse and produce four offspring, this protein destroys the two parental macronuclei (whose genetic material were not used during the sexual reproduction) and removes the gene s related to sexual reproduction from all offspring macronuclei.

5. Endomixis
* Self-fertilization; the union of an egg and a sperm which are both from the same individual. * In certain ciliated protozoan s, a process of nuclear division and reorganization.

6. Euglena
Euglena is a genus of flagellate freshwater protozoan s. It contains chlorophyll and is therefore photosynthetic, but it can also be mobile and gather its own food when sunlight is absent. Because it has the characteristics of both plants and animals, it is thought to be related to/similar to the ancestral organism which gave rise to both plants and animals.

7. Euglenoids
Term applied to a division of protozoans that have one long flagellum , no cell wall, and which may have chloroplasts .

8. Expression site
The location in the genome of the gene for the "variable surface glycoprotein " that is currently being expressed (an expression-linked copy ) by the trypanosome (a parasitic protozoan which causes the disease African sleeping sickness ). Most of these sites are near the ends, or telomere s, of a chromosome .

9. Expression-linked copy (ELC)
One of many different versions of the "variable surface glycoprotein gene " of the trypanosome (a parasitic protozoan which causes the disease African sleeping sickness ); refers to whichever one of them is currently being expressed on the outer surface of the trypanosome.

10. Falciparum malaria
The most severe form of malaria ; it is sometimes fatal, and is characterized by fever, confusion, spleen enlargement, nausea and anemia. It is caused by the protozoan Plasmodium falciparum.

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