kingdom protista. is considered to be the “junk drawer” kingdom since it’s very diverse. all...
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Kingdom Protista
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.
There are ? types of protists.
3
1. Animal-like Protists(Protozoans)
• Move place to place to obtain food
• Single-celled (unicellular)
• There are 4 types of Protozoans:
• Ones with psuedopods(pseudo=false, pod=foot)
• These organisms allow their cell membranes to bulge out so they can move.
1. Sacrodines
1. Sacrodines• An example is an amoeba.
• Amoebas have a contractile vacuole; structure that collects extra water and expels it from cell.
2. Ciliates
• Contain cilia or hair-like projections from the cell.
• Example: paramecium
3. zooflagellates
• Have 1-8 whip-like tails called flagella.
• Example: Giardia
4. Sporozoans
• Parasites that feed on cells/body fluids of hosts.
• Example: Plasmodium (causes malaria)
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.
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.
3. Plant-like Protists
Algae-all are autotrophs like plants, most O2 comes from these organisms, they vary in size.
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
Plant-like Protists• Diatoms – unicellular with glass-like
walls, support the aquatic ecosystem.
Plant-like Protists
• Green algae – uni- and multicellular, green pigments.
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.
Plant-like protists
• Brown algae – Giant kelps, brown, yellow, and orange pigments.
• Orange pigments help make salad dressing and pudding.
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