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Kingdom Protista.

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Presentation on theme: "Kingdom Protista."— Presentation transcript:

1 Kingdom Protista

2 Kingdom Protista Is considered to be the “junk drawer” kingdom since it’s very diverse. All are eukaryotes (with nuclei) that live in moist surroundings.

3 There are ? types of protists.
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4 Animal-like Protists (Protozoans)
Move place to place to obtain food Single-celled (unicellular) There are 4 types of Protozoans:

5 1. Sacrodines Ones with psuedopods (pseudo=false, pod=foot)
These organisms allow their cell membranes to bulge out so they can move.

6 1. Sacrodines An example is an amoeba.
Amoebas have a contractile vacuole; structure that collects extra water and expels it from cell.

7 2. Ciliates Contain cilia or hair-like projections from the cell.
Example: paramecium

8 3. zooflagellates Have 1-8 whip-like tails called flagella.
Example: Giardia

9 4. Sporozoans Parasites that feed on cells/body fluids of hosts.
Example: Plasmodium (causes malaria)

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11 2. Fungus-like Protists Like fungus, fungus-like protists are heterotrophs, have cell walls, and use spores to reproduce. But unlike fungi, these guys at some point can move.

12 Fungus-like protists Examples:
water molds (grows as tiny threads for a fuzzy covering), downy mildews, and slime molds (bright colored, feed on decaying plants.

13 3. Plant-like Protists Algae-all are autotrophs like plants, most O2 comes from these organisms, they vary in size.

14 Plant-like Protists Euglenoids – green unicellular algae found in freshwater. They have long flagellum. Dinoflagellates – unicellular algae covered in “stiff plates”, 2 flagella, many glow in dark

15 Plant-like Protists Diatoms – unicellular with glass-like walls, support the aquatic ecosystem.

16 Plant-like Protists Green algae – uni- and multicellular, green pigments.

17 Plant-like Protists Red algae – almost all are multicellular seaweeds, some can live below 260 meters in the ocean. Carrageenan comes from red algae and is used in making ice cream and conditioner.

18 Plant-like protists Brown algae – Giant kelps, brown, yellow, and orange pigments. Orange pigments help make salad dressing and pudding.

19 the end


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