Amoebas

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Author:
smourer
ID:
232642
Filename:
Amoebas
Updated:
2013-09-03 17:32:58
Tags:
Amoebas Parasites Parasitology Classification identification Entamoemba
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Description:
classification of parasitic and commensal amoebas
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  1. General Amoeba Characteristics
    • unicellular protozoans; microscopic creatures that aimlessly wander about in mud, water, and soil, and reproducing by binary fission.
    • Most are free-living, some are commensal and a few are parasitic.
  2. 7 species of Amoeba known to inhabit humans:
    • Entamoeba histolytica
    • E. hartmanni
    • E. coli
    • E. polecki
    • E. gingivalis
    • Endoliomax nana
    • Iodamoeba butchlii (eyeodomeebah booshlee eye)
  3. 3 other genera of amoeba that can parasitize humans under specific conditions.
    • Naegleria
    • Acanthamoeba
    • Harmanella
  4. Characteristics of genus Entamoeba
    • Vesicular nucleus possessing a small karyosome near the center
    • Chromatin granules arranged around periphery of nucleus
    • Cytoplasm contains food vacuoles, lysosomes, endoplasmic reticulum, and ribosomes
    • Also contain Helical Bodies in the trophozoites. 0.3 - 1 um in length with packaged RNA and ribosomes.

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