chapter25%20-%20animal-like%20protista%20_1_

chapter25%20-%20animal-like%20protista%20_1_ - cilia (9 + 2...

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Kingdom Protista (Protozoa) Chapter 25 Carolyn d’Arville, PhD MS FEd d’[email protected]
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Domains and Kingdoms
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Kingdom Protista Protists are a diverse group of eukaryotic organisms, most of which are microscopic and live in aquatic environments Protists: vary in body plan method of motility nutrition type mode of reproduction
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Kingdom Protista Algal protists (last semester) Protozoan Protists (this semester)
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Zooflagellates (Excavates) Non-photosynthesizing unicellular protozoans that move via a whip-like flagellum Diplomonads : Fig 25-5: TEM of Giardia intestinalis As an example of mutualism; Trichonympha
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Zooflagellates (Discicristates) Euglenoids have disc-like cristae in mitochondria are unicellular and flagellate Parasitic members: Trypanosoma
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Ciliates (Alveolates) Unicellular, free-living, few parasitic move by numerous hair-like
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Unformatted text preview: cilia (9 + 2 microtubular arrangement) • Nuclei • 1 or 2 micronuclei • macronucleus Fig 25-7,8 Apicomplexans (Alveolates) • Non-motile unicellular parasites that produce sporozoites (resistant or resting stage) • Plasmodium ( species ) Plasmodium (Fig 25-10) Foraminiferans (Cercozoa) (Fig 25-20) SEM of foraminiferan test (many chambers) White Cliffs of Dover consist mainly of foraminiferans tests Marine, unicellular Actinopods (Cercozoa) (Fig 25-21) • Mostly marine unicellular plankton • Radiolarians Amoebas (Amoebazoa) (Fig 25-22) • Use pseudopodia to move and obtain food by phagocytosis • Entamoeba histolytica • causes amoebic dysentery • third leading cause of parasitic disease in humans • Infective cyst stage ingested from fecal contaminated food and water (e.g. Indonesia after Tsunami)...
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This note was uploaded on 03/08/2011 for the course BIO 119 taught by Professor Transue during the Spring '09 term at Rutgers.

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chapter25%20-%20animal-like%20protista%20_1_ - cilia (9 + 2...

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