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Kingdom: Protista. The most diverse of the 5 kingdoms Can be animal-like, plant-like or fungus-like . More than 200,000 species Classified by the different shapes, sizes & colors. Known as protozoans Unicellular Heterotrophs Feed on other organisms Grouped by way they move.

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kingdom protista

Kingdom: Protista

The most diverse of the 5 kingdoms

Can be animal-like, plant-like or fungus-like.

More than 200,000 species

Classified by the different shapes, sizes & colors

animal like protists
Known as protozoans



Feed on other organisms

Grouped by way they move.

Animal-Like Protists
protozoans move 2
Protozoans Move #2
  • Flagella: whip like tail
protozoans move 3
Protozoans Move #3
  • Pseudopodia: cytoplasm extensions
protozoans move 4
Protozoans Move #4
  • Non-motile have no way of capturing food so they live as parasites.
amoeba phylum sarcodia
No cell walls

Pseudopodia (cytoplasm feet): means for movement

Engulfs bits of food

Blob like-change shape constantly

Amoeba outer cells are made of Calcium Carbonate

Amoeba: Phylum Sarcodia

Some amoebas live in salt water,

Few are found in freshwater




flagellates phylum zoomastigina
Have 1 or more flagella

Some species are parasites/ others helpful.

ie: termites.

ie: African Sleeping Sickness

Flagellates: Phylum Zoomastigina
african sleeping sickness
African Sleeping Sickness
  • Transmitted by tsetse fly (lives only in Africa)
  • Fever, lethargy, mental deterioration, coma
trypanosoma cruzi
Trypanosoma cruzi
  • Chagas’ Disease
  • Transmitted by “kissing bugs” –cone bugs
  • Fever and severe heart damage
leishmania donovani
Leishmania donovani
  • Transmitted by sand flies
  • Disfiguring skin sores
  • Can be fatal
ciliates phylum ciliophora
Move by beating cilia

Found in every kind of aquatic habitat

Ponds, streams, oceans & sulfur

Ex: Paramecium

Ciliates: Phylum Ciliophora
sporozoans phylum sporozoa


Produce many spores

Best known member:Plasmodium

Causes malaria-transferred by mosquito’s

Sporozoans: Phylum Sporozoa

Transferred by mosquitoes

Kills 2-4 million people/yr.

Treatments now

plant like protists
Plant-Like Protists
  • Multi-cellular photosynthetic protist
  • 1. Look like plants – no roots, stems/leaves
  • 2. Contains chlorophyll
  • 3. Classified by pigment colors
algae classified by 6 phyla
Algae classified by 6 phyla
  • 3: euglenoids, diatoms, & dinoflagellates
  • 3: unicellular members: Green, Red & Brown Algae
euglenoids phylum euglenophyta
Euglenoids: Phylum Euglenophyta
  • Unicellular
  • Plant like: chlorophyll
  • Animal like: responsive movement
  • 1 or 2 flagella
euglena body
Euglena Body

Eye Spot detects enough light to find food

Whip-like tail

Makes Green

diatoms phylum bacillariophyta
Shells: small pillbox w/ lids, made of silica

Make up large number of plankton

When die: sinks to ocean floor


Toothpaste, paints

Pavement lines

Diatoms: Phylum Bacillariophyta
dinoflagellates phylum dinoflagellata
Dinoflagellates: Phylum Dinoflagellata
  • Also called: Spinning Algae/Fire Algae
  • Look like helmets & suits of armor
  • Cause red tides: produce toxins
  • Oceans turn red/orange
  • Kills tons of fish
red algae phylum rhodophyta
Red Algae: Phylum Rhodophyta
  • Red seaweed
  • Tropical waters along rocky coast
  • Holdfast to attach
  • Deep waters w/ lots of pigments
brown algae phylum phaeophyta
Brown Algae: Phylum Phaeophyta
  • 1500 species all live in salt water
  • Kelp most common
  • Anchor w/ holdfast
  • Body of kelp called thallus
  • Thallus 3 parts:




brown algae
Brown Algae
  • The largest and most complex of brown algae are kelp.
green algae phylum chlorophyta
Green Algae: Phylum Chlorophyta
  • Most diverse. 7000 species
  • Most species live in fresh water
  • Others: ocean, moist soil

tree trunks

fungi like protists
Fungi-Like Protists
  • Groups of slime molds & Water Molds
  • Reproduce: Form delicate structures on food supplies
  • Obtain energy by decomposing organic material.
slime molds
Slime Molds
  • Animal-like & Fungi-like
  • Classified by reproduce
  • Beautiful colors
  • Live in cool moist shady places
2 major types of slime molds
2 major types of Slime Molds

1. Plasmodial Slime Mold:

phylum: Myxomycota

2. Cellular Slime Mold

phylum: Asrasiomycota

water downy molds phylum oomycota
Water & Downy Moldsphylum Oomycota
  • Live in water or moist places
  • Appear fuzzy & white on decaying material