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Most diverse of all the Kingdoms

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1 Most diverse of all the Kingdoms
Kingdom Protista Most diverse of all the Kingdoms

2 Kingdom Protista- Basic Characteristics
Eukaryote: cells with nucleus (organelles) Unicellular or Multicellular Autotrophs or heterotrophs Variation in movement Contain both plant and animal characteristics Asexual reproduction (fission) in all, some have types of sexual reproduction

3 Classifying Protists Some scientists classify protists by their methods of obtaining nutrition. Animal-like protists (PROTOZOANS) Classified based on method of movement Plantlike protists (ALGAE) Classified based on color pigment Funguslike protists Classified based on method of reproduction

4 The Protozoans (Animal-like)
Phylum Ciliophora (Paramecium) Have cilia for movement Pellicle for support Macronucleus Micronucleus- used for reproduction Contractile vacuole- get rid of excess water Oral groove: where the food enters cell Gullet: forms the food vacuoles Food vacuoles: store food Anal pore: removes wastes Trichocysts: used for protection (self defense) Cytoplasm

5 Paramecium

6 Paramecium Characteristics
Cilia beat rapidly- move very fast (wave like motion) Food getting Cilia pull food into the oral groove Gullet encloses food in a food vacuole Reproduction Asexual (fission) Sexual (conjugation) Exchange of genetic material

7 The Protozoans (Animal-like)
Phylum Rhizopoda (Amoeba) Cell Membrane Nucleus Contractile vacuole: expels excess water Ectoplasm: clear outer cytoplasm Endoplasm: dense inner cytoplasm Pseudopod: (false feet) how they move & obtain food Food vacuole: stores & digests food

8 Amoeba Characteristics
Movement: gel-sol reaction (move very slow) Food getting: phagocytosis (engulfs food) Pseudopods trap food and form a vacuole Enzymes digest food Reprodution: asexual (fission)

9 The Protozoans (Animal-like)
Phylum Sporozoa (plasmodium) All are parasites Cause malaria Phylum Zoomatigina Zooflagellates Cause disease transferred by insects

10 Algae (Plant-like Protists)
Phylum Bacillariophyta (Diatoms) Diatomaceous earth: used for toothpaste and insecticides

11 Algae (Plant-like Protists)
Phylum Euglenophyta (Euglena) Flagella used for movement Eyespot: used to detect light Contractile vacuole: expels excess water Chloroplasts: makes food Nucleus: controls the cell Pellicle: helps keep the shape

12 Euglena Characteristics
Movement: twirling of flagella pulls euglena through water Movement is slow Food getting: autotrophic & heterotrophic Uses eye spot to get to light Can absorb food across cell membrane Reproduction Asexual (fission)

13 Fungus-like Protists Absorb nutrients from decaying organic material (heterotrophic) Include slime molds

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