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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

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chapter 22 protist
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
Chapter 22 Protist continued
  • 22.3 Different Kinds of Fungus like Protists
  • Slime Molds
  • Water Molds and Downy Mildews
protist diversity
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
Protozoan: Animal-like Protists
  • Unicellular heterotrophs
  • classified by their method of movement
    • cilia
    • flagella
    • pseudopodia
    • non-motile
animal like amoebas
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 with shells
Amoebas with Shells
  • Hard Shell Amoeba
flagellates protozoans that move with flagella
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
Non-Motile Protist
  • Giardia- cause of Malaria
contractile vacuoles
Contractile Vacuoles

Vacuole filled with waste products

Emptied vacuole waste material

22 2 algae plant like protists
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
What are Algae?
  • Six different groups
    • Unicellular
      • Euglenoid
      • Diatoms
      • Dinoflagellates
    • Multicellular
      • red algae
      • Brown algae
      • Green algae
euglenoid protist
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
diatom facts
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
dinoflagellate info
Dinoflagellate info
  • Unicellular in size
  • Cell wall is made of thick plates
  • Move by using two flagella
  • One species causes Red tide
red algae information
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 information
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 information
Green Algae information
  • Most are fresh water organism
  • some are unicellular/ multicellular
  • Reproduce by using both sexual and asexual reproduction
  • Use Alternating generation
22 3 fungus like protists
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
Different Kinds of Funguslike Protists
  • There are three phyla of fungus like molds
    • slime molds
      • plasmodial
      • cellular
    • water molds