1 / 13

Kingdom Protista

Kingdom Protista. Eukaryotes Most with one cell ( Unicellular ) Some with many cells ( Multicellular ): seaweed Autotrophs or Heterotrophs Protists contains organisms that do not fit into the other eukaryotic kingdoms Protists evolved from prokaryotes (bacteria) Protista can be:

bena
Download Presentation

Kingdom Protista

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Kingdom Protista • Eukaryotes • Most with one cell (Unicellular) • Some with many cells (Multicellular): seaweed • Autotrophs or Heterotrophs • Protists contains organisms that do not fit into the other eukaryotic kingdoms • Protists evolved from prokaryotes (bacteria) • Protista can be: Animal-like, Plant-like, Fungus-like

  2. Movement in Protista1.Flagella: long, whip-like projection Most have just 1 or 2 flagella

  3. Paramecium caudatum 2.Cilia: Short, hair-like projections. Too many cilia to count

  4. 3.Pseudopods: Temporary projections of the cytoplasm. Change shape constantly Amoeba proteus

  5. Reproduction 1.Binary Fission: Split into 2 identical cells 2.Conjugation: Exchange pieces of DNA. Then split in 2. Increase genetic diversity

  6. 1. Animal-like Protista • All heterotrophic (like animals). Need to consume other organisms Trypanosoma: parasite blood Vorticella: cilia, freshwater

  7. Trichonympha: Intestine of termites Trychonympha breaks down cellulose in wood. Paramecium: Freshwater, cilia, unicellular

  8. 2. Plant-like Protista = Algae • All autotrophic, like plants. Photosynthesis • Have chlorophyll inside chloroplasts. Volvox: freshwater Diatoms: aquatic with a shell - produce most O2 on Earth

  9. Green algae (seaweed) Marine, multicellular Euglena: freshwater, Unicellular, flagellum

  10. Plankton: verysmall floating organisms in freshwater and marine environments. Plankton = Phytoplankton + Zooplankton 1. Zooplankton: heterotrophic organisms 2. Phytoplankton: autotrophic organisms –photosynthesis Phytoplankton produce most of the oxygen on Earth!!

  11. Phytoplankton from Space

  12. All heterotrophs – Decomposers: Absorb nutrients from dead or decaying organic matter Slime mold on mulch 3. Fungus-like Protista Phytophthora infestans: Potato blight – destroyed potato crops in Ireland in 1844-1851

More Related