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Protists The world of Protists: Animal-like ProtistsPlant-like Protists Fungus-like Protists
Protist Diversity 200,000 species come in different shapes, sizes, and colors All are eukaryotes – have a nucleus and membrane-bound organelles
Protozoans Animal-like Protists
Protozoans Unicellular – made up of one cellHeterotrophs – they eat other organisms or dead organic matter Classified by how they move
Amoebas Flagellates Ciliates SporazoansPhyla of Protozoans Amoebas Flagellates Ciliates Sporazoans
Amoebas: the blobs No cell wallMove using pseudopods – plasma extensions Engulf bits of food by flowing around and over them
Flagellates: the motorboatsUse a whip-like extension called a flagella to move Some cause diseases
Trichomonas foetus : cow disease
Trichomonas vaginalis: an STD
Ciliates: the hairy onesMove beating tiny hairs called cilia
Sporazoans: the parasiteNon-motile - Do not move Live inside a host One type causes malaria
Malaria in red blood cells
Pneumonia in aids patients
Algae Plantlike Protists
What are Algae? Multicellular – made of more than one cellPhotosynthetic – make their own food No roots, stems, or leaves Each has chlorophyll and other photosynthetic pigments
Euglenoids Diatoms Dinoflagellates Red, Brown, & Green AlgaePhyla of Algae Euglenoids Diatoms Dinoflagellates Red, Brown, & Green Algae
Euglenoids: The SurvivorsAquatic Move around like animals Can ingest food from surroundings when light is not available
Diatoms: The Golden OnesHave shells made of silica (glass) Photosynthetic pigment called carotenoids – give them a golden color
Dinoflagellates: The Spinning OnesSpin around using two flagella Responsible for Red Tides Create toxins that can kill animals and sometimes people
Red Algae: The…uh…Red Ones (duh)Seaweeds Multicellular, marine organisms Have red and blue pigments
Brown Algae: The Brown Ones (You think?)They have air bladders to help them float at the surface – where the light is.
Green Algae: Yeah, You Guessed it, The Green OnesMost live in fresh water Can be unicellular or multicellular Live alone or in groups called colonies
Characteristics in CommonAll form delicate, netlike structures on the surface of their food source Obtain energy by decomposing organic material
Phyla of Fungus-like ProtistsPlasmodium Slime Molds Cellular Slime Molds Water Molds & Downy Mildews
Slime Molds Live in cool moist, shady places where they grow on damp, organic matter
Plasmodium Slime MoldsForm plasmodium: a mass of cytoplasm that contains many diploid nuclei but no cell walls or membranes – its feeding stage Creeps by amoeboid movement – 2.5 cm/hour
Plasmodium continued…May reach more than a meter in diameter Form reproductive structures when surroundings dry up Spores are dispersed by the wind and grow into new plasmodium
Cellular Slime Molds In feeding mode, they exist as individual amoebic cells When food becomes scarce, they come together with thousands of their own kind to reproduce May look like a plasmodium
Water Molds and Downy MildewsLive in water or moist places Feed on dead organisms or parasitize plants Fuzzy white growths
TSW 8 Protists By Tae Sung Huh.
Protists Diversity of Protists Protozoans Slime Molds Algae
Fungus Like Protists.
Ch. 7 Protists.
19.1 Section Objectives – page 503
Protists Protist are single cell eukaryotes.
Protist Notes. What is a Protist? Mostly single-celled eukaryotes that can’t be classified as a plant, an animal, or fungi – some are multi- cellular.
ANIMAL-LIKE PROTISTS PLANTLIKE PROTISTS FUNGILIKE PROTISTS GROUPCiliates, amoebas, apicomplexans, and zooflagellates Euglenoids, diatoms, dinoflagellates,
Protists and Fungi Book A: Chapter 3
PROTISTS. KINGDOM PHYLUM GENUS FAMILY CLASS ORDER SPECIES DOMAIN.
KINGDOM: PROTISTA Protists are unicellular organisms that have a nucleus.
Protists 45 words. Protists §Animal-like vs Plant or Fungus like.. l Called Protozoans l Divided into 4 groups Pseudopods –False Feet. –Move by bulging.
Protozoans Heterotrophic (Obtain food from other organisms) Four.
Bellringer Have you ever hear of a protist before? How many examples of protists can you think of? Why do you suppose protists are not as well known as.
Protists Chapter 19..
Kingdom Protista Chapter 19.
Eukaryotes Have nucleus and membrane bound organelles Most are unicellular, some are multicellular or colonial Can be plant-like, fungus-like,
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