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.

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 ProtistsKnown as protozoansUnicellularHeterotrophsFeed on other organismsGrouped by way they move.

Protozoans Move #1

Cilia: hair like particles.

Protozoans Move #2

Flagella: whip like tail

Protozoans Move #3

Pseudopodia: cytoplasm extensions

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

Some amoebas live in salt water,

Few are found in freshwater

Amoebas

ForaminiferanRadiolarian

Flagellates: Phylum Zoomastigina

Have 1 or more flagella

Some species are parasites/ others helpful.

ie: termites.

ie: African Sleeping Sickness

African Sleeping Sickness

Transmitted by tsetse fly (lives only in Africa)

Fever, lethargy, mental deterioration, coma

Tsetse fly

Trypanosoma cruzi

Chagas’ Disease

Transmitted by “kissing bugs” –cone bugs

Fever and severe heart damage

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

Paramecium Parts

Sporozoans: Phylum Sporozoa

Parasitic

Non-motile

Produce many spores

Best known member:Plasmodium

Causes malaria-transferred by mosquito’s

Malaria:

Plasmodium

Transferred by mosquitoes

Kills 2-4 million people/yr.

Treatments now

Life cycle

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

3: euglenoids, diatoms, & dinoflagellates

3: unicellular members: Green, Red & Brown Algae

Euglenoids: Phylum Euglenophyta

Unicellular

Plant like: chlorophyll

Animal like: responsive movement

1 or 2 flagella

Euglena Body

Eye Spot detects enough light to find

food

Makes Green

Whip-like tail

Diatoms: Phylum Bacillariophyta

Shells: small pillbox w/ lids, made of silica

Make up large number of plankton

When die: sinks to ocean floor

Dredge/Mine

Toothpaste, paints

Pavement lines

Diatoms

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 Tides

Red Algae: Phylum Rhodophyta

Red seaweed

Tropical waters along rocky coast

Holdfast to attach

Deep waters w/ lots of pigments

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:

holdfast

stipe

blade

Brown Algae

• The largest and most complex of brown algae are kelp.

Green Algae: Phylum Chlorophyta

Most diverse. 7000 species

Most species live in fresh water

Others: ocean, moist soil

tree trunks

Fungi-Like Protists

Groups of slime molds & Water Molds

Reproduce: Form delicate structures on food supplies

Obtain energy by decomposing organic material.

Slime Molds

Animal-like & Fungi-like

Classified by reproduce

Beautiful colors

Live in cool moist shady places

2 major types of Slime Molds

1. Plasmodial Slime Mold:

phylum: Myxomycota

2. Cellular Slime Mold

phylum: Asrasiomycota

Water & Downy Moldsphylum Oomycota

Live in water or moist places

Appear fuzzy & white on decaying material