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Protists The world of Protists: Animal-like ProtistsPlant-like Protists Fungus-like Protists
Kingdom Protista Cell Number: Mostly single-celled, some colonialCell Type: Eukaryotic (has a nucleus and organelles) Feeding: Hetero or autotrophic Reproduction: Mostly asexual Summary: Single-Celled Eukaryotes
Protist Diversity 200,000 species come in different shapes, sizes, and colors All are eukaryotes – have a nucleus and membrane-bound organelles Reproduce sexually or asexually
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 or “fake feet” (draw picture) Engulf bits of food by phagocytosis
Flagellates: the motorboatsUse a flagella – a whip like tail to move (draw one) Some cause diseases
Trichomonas vaginalis: an STD
Ciliates: the hairy onesMove with cilia – tiny beating hairs (draw one)
Sporazoans: the parasiteNon-motile - Do not move Live inside a host One type causes malaria
Malaria in red blood cells
Algae Plantlike Protists
What are Algae? Colonial– made of more than one cell, but can live singularly Photosynthetic – 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 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 Live alone or in groups called colonies Ancestor to land plants
Characteristics in CommonAll form delicate, netlike structures on the surface of their food source, mold-like 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
Protists Diversity of Protists Protozoans Slime Molds Algae
Protists The world of Protists: Animal-like Protists
Ch. 7 Protists.
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.
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.
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,
PROTISTS: THE UNICELLULAR EUKARYOTES. PROTISTS Eukaryotic Usually unicellular Diversely shaped Not a fungus, plant or animal Three types: - Animal-like.
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.
Chapter 22 Protist Protist Diversity Protozoan: Animal-like Protists
Protists The World of Protists: Animal-like Protists
Three Groups of Protists:
Kingdom Protista. Protist Characteristics 200,000 species come in different shapes, sizes, and colors eukaryotes All are eukaryotes – have a nucleus and.
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