Chapter 22 Protist Protist Diversity Protozoan: Animal-like Protists 22.2 Algae: Plant-like Protists What are Algae? Phyla of Algae Reproductive strategies of Algae Fungus-like Protists

Chapter 22 Protist continued 22.3 Different Kinds of Fungus like Protists Slime Molds Water Molds and Downy Mildews

Protist Diversity Most Diverse of all five kingdoms size varies from microns to over 100 meters 200,000 species All are Eukaryotes

Protozoan: Animal-like Protists Unicellular heterotrophs classified by their method of movement cilia flagella pseudopodia non-motile

Animal - like Amoebas Phylum sarcodina No wall outside cell membrane move by forming pseudopodia live in water or wet patches have problem with Osmosis Contractile vacuoles are Use to eliminate waste

Amoebas pictures

Amoebas with Shells Hard Shell Amoeba

Amoeba feeding

Ciliated Protist Paramecium

Paramecium morphology

Paramecium feeding

Flagellated Protist

Flagellates: Protozoans that move with Flagella Animal-like because they move and aren’t able to make their own food Some have a single flagella and others have two Are aquatic / marine single cell organisms

Non-Motile Protist Giardia- cause of Malaria

Reproductive strategies of Sarcodines

Contractile Vacuoles Vacuole filled with waste products Emptied vacuole waste material

22.2 Algae: Plant-like Protists Plant like protist that utilize Photosynthesis Some are unicellular some are multicellular All are Aquatic / Marine

What are Algae? Six different groups Euglenoid Diatoms Dinoflagellates Unicellular Euglenoid Diatoms Dinoflagellates Multicellular red algae Brown algae Green algae

Euglenoid

Euglenoid Protist They are unicellular Are heterotrophs Utilize Photosynthesis to make their food Can absorb food during dark periods Have and eyespot to help find light single flagella to swim

Euglena- picture 2

Euglena diagram

Diatoms- protist

Diatom - assorted picture

Diatom facts Have two halves to their hard shells which are made of silica undergo both asexual and sexual reproductions Vital part of the food chain in oceans

Diatom - reproduction

Dinoflagellates pictures

Dinoflagellate info Unicellular in size Cell wall is made of thick plates Move by using two flagella One species causes Red tide

Red algae Picture

Red Algae information Another name for this group is red seaweed acts like and looks plants - attaches itself to the bottom and has a long stem like structure with what looks like leaves. Deep ocean location because they can absorb blue colors ( most penetrating light)

Brown Algae - pictue

Brown Algae picture 2

Brown Algae information Another name for this group is Brown seaweed ( kelp) loves cold water uses a thallus to attach itself to rocks no real stem or roots Agar ( gelleton ) comes from this protist

Green Algae - picture

Green Algae picture 2

Green Algae information Most are fresh water organism some are unicellular/ multicellular Reproduce by using both sexual and asexual reproduction Use Alternating generation

Reproductive strategies of Algae

Alternating Generation -diagram

22.3 Fungus-like Protists Colorfull - ranging in color ( red, blue, violet to yellow live in cool moist environments live off rotting organic matter are motile

Different Kinds of Funguslike Protists There are three phyla of fungus like molds slime molds plasmodial cellular water molds

Slime Molds- plasmodial

Slime mold - cellular

Water Molds and Downy Mildews