Presentation on theme: "1 Living organisms are classified into 3 Domains 1.Bacteria 2.Archaea 3.Eukarya 4 Kingdoms in this Domain."— Presentation transcript:
1 Living organisms are classified into 3 Domains 1.Bacteria 2.Archaea 3.Eukarya 4 Kingdoms in this Domain
2 Domain Eukarya has 4 Kingdoms 1. Kingdom Protista 2. Kingdom Fungi 3. Kingdom Plantae 4. Kingdom Animalia
3 Kingdom Protista Believed to have evolved as the first eukaryotes. Believed to have evolved as the first eukaryotes. Organisms in this group just dont fit perfectly into any other Kingdom in the Domain Eukarya. Organisms in this group just dont fit perfectly into any other Kingdom in the Domain Eukarya.
4 Most protists are unicellular, but some multicellular Asexual reproduction is common, but sexual reproduction also occurs. Most diverse group of organisms of any kingdom.
6 Diversity of Protista 3 Major Divisions 1 st Plant-like Protist Phytoplankton Algae (Sea Weed) EuglenoidsRed Algae DiatomsBrown Algae DinoflagellatesGreen Algae Unicellular Multicellular
7 2nd Division of Protista Animal Like Protist or Protozoa Animal Like Protist or Protozoa Amoebas Amoebas Flagellates Flagellates Ciliates Ciliates Sporozoans Sporozoans
8 3 rd Division of Protista Fungus-Like Protist Fungus-Like Protist Slime Molds Slime Molds Water Molds Water Molds Downy Mildews Downy Mildews
9 15 phyla, based on the way they obtain energy.
10 PLANT-LIKE PROTIST It is thought that these Evolve into Plants with specialized cells and tissues
11 Phylum Chlorophyta Green Algae Spirogyra 7000 species of Chlorophyta
12 Phylum Chlorophyta Green Algae Spirogyra is a filamentous green algae. They form end-to-end chains of cells. Often found on the surfaces of ponds. Conjugation (similar to bacterial conjugation)
13 Phylum Chlorophyta: Green Algae Multicellular green algae Chara is a stonewort, the type of green algae believed to be most closely related to plants.
14 Phylum Chlorophyta Green Algae Volvox is a colonial green alga which has many individuals living together
15 Green Algae Pediastrum, a flat colony of green algae Pediastrum, a flat colony of green algae
16 Phylum Rhodophyta Red Algae Commercial importance of red algae: Agarlaboratory use, gelatin used in Petri dishes Carrageen thickening agent in commercial products Porphyra--sushi
17 Phylum Phaeophyta Brown Algae Underwater forests habitats Kelp food, habitats for aquatic organisms Pectinused to make gelatin
Brown Algae-Kelp 18
19 Phylum Bacilariophyta: Diatoms or Golden Algae Silicathe shells of these organisms are used to make glass, concrete, Diatomaceous earth -dead diatoms settle to seafloor, collected and used in abrasives Plankton abundant food source for marine organisms
21 More Diatoms
22 Phylum Dinoflagellata: Spinning Algae-2 flagella for movement Some are bio- luminescent Some Symbiotic Some Parasitic Red tidepopulation explosion of certain types of dinoflagellates. Kills large amounts of fish. Depletes water of oxygen and releases toxins into the water.
23 Red Tide-Dinoflagellates The toxins produces by the Red Tide can make humans sick. Harvesting shellfish is banned during this time.
24 More Dinoflagellates
25 And more Dinoflagellates
26 Phylum Euglenophyta Freshwater This phylum is a typical example of the difficulties in categorizing protists: 1/3 have chloroplasts, the other 2/3 do not. No sexual reproduction. Longitudinal fission. Propels the body through water.
27 Many Euglena!
28 ANIMAL-LIKE PROTIST It is thought that these evolve into of Animals with multicellularity and specialized cells and tissue
29 Phylum Zoomastigina: Move by Flagella Trypanosoma transmitted by the bite of a tsetse fly, cause African Sleeping Sickness. Animal- like protists Parasite
30 Trypanosoma are Flagellates which cause African Sleeping Sickness Transmitted to their human hosts by a tsetse fly Below: Trypanosoma in a sample of human blood X 400.
31 More Flagellates Zoomastigina Some are helpful and live in the gut of termites and digest wood Search Results
32 More Flagellates Phylum Zoomastigina Giardia Lamblia Attaches to intestinal tract and causes diarrhea Other flagellates are known to spread sexually by infecting the vagina and urethra of women, and the prostate, seminal vesicles and urethra of men. Example: Trichomoniasis Animal- like protists Can become infected by drinking contaminated water from stream
33 Phylum Rhizopoda-Amoebas Move by Pseudopodia Phylum Rhizopoda- amoebas, including Entamoeba hystolytica Phylum Foraminifera- calcium carbonate shell Phylum Actinopoda- radiolarians Trivia White Cliffs of Dover, Egyptian pyramids
34 Amoeba The projections are called pseudopods or false feet.
36 Phylum Ciliophora or Ciliates Move by Cilia Very diverse group; very complex single-celled organisms which use cilia for movement.
40 Phylum Sporozoa-Parasite Life cycle of Plasmodium vivax, which Causes malaria Carried by the Anopheles mosquito
41 Fungus-Like Protist Thought to evolve into Fungus
42 What are Fungus-Like Protists? Organisms which have some fungus-like features Organisms which have some fungus-like features Heterotrophic Heterotrophic Decompose organic material Decompose organic material
43 Types of Fungus Like Protist: Slime molds, Water Molds, and Downy Mildews
44 Slime Mold
45 Slime Mold Body with reproductive Sporangia Stalks
46 Dog Vomit Slime Mold
47 More Slime Mold
48 More Slime Mold
49 Orange Slime Mold Orange Slime Mold
50 Fungus like Protist
51 Downy Mildews
52 Summary of Protista Kingdom Most diverse group, autotrophic and heterotrophic Most diverse group, autotrophic and heterotrophic Eukaryotes, single celled and multicelled Eukaryotes, single celled and multicelled Some move by: flagella, pseudopodia, cillia Some move by: flagella, pseudopodia, cillia Some are parasites Some are parasites Reproduction both asexual and sexual Reproduction both asexual and sexual Some are harmless, some cause sleeping sickness, malaria and STDs Some are harmless, some cause sleeping sickness, malaria and STDs