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Analogy: Kitchen junk drawer Animal-like Plant-like In General Mostly aquatic life Usually unicellular – Eukaryotic Reproduction: – Some asexual, some.

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Presentation on theme: "Analogy: Kitchen junk drawer Animal-like Plant-like In General Mostly aquatic life Usually unicellular – Eukaryotic Reproduction: – Some asexual, some."— Presentation transcript:

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3 Analogy: Kitchen junk drawer Animal-like Plant-like In General Mostly aquatic life Usually unicellular – Eukaryotic Reproduction: – Some asexual, some sexual, some both Feeding: – Most heterotrophic, some autotrophic Kingdom for life that doesn’t fit in animals, plant or fungi kingdom 3 main categories Fungi-like

4 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas Animal-Like Protista

5 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas Animal-Like Protista

6 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas 2) Flagellates: move w/ flagella – Ex: Trypanosoma causes sleeping sickness Animal-Like Protista Vector: tsetse fly Trypanosoma Giardia causes diarrhea

7 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas 2) Flagellates: move w/ flagella – Ex: Trypanosoma causes sleeping sickness Animal-Like Protista

8 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas 2) Flagellates: move w/ flagella – Ex: Trypanosoma causes sleeping sickness 3) Ciliates: move w/ cilia – Ex: Paramecia Animal-Like Protista

9 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas 2) Flagellates: move w/ flagella – Ex: Trypanosoma causes sleeping sickness 3) Ciliates: move w/ cilia – Ex: Paramecia Animal-Like Protista Rotifers beat their cilia to create a current to draw water into their “mouths”

10 AKA: Protozoans Heterotrophic: pathogens, parasites, predators Classified by how they move: 1) Pseudopods : move w/ pseudopodia (false- feet) – Engulf by phagocytosis – Ex: Amoebas 2) Flagellates: move w/ flagella – Ex: Trypanosoma causes sleeping sickness 3) Ciliates: move w/ cilia – Ex: Paramecia Animal-Like Protista Amoeba (pseudopod) eating Paramecia (ciliates) The paramecia start to freak out once they start to be digested!

11 Animal-Like Protista & Disease Malaria – Cause: Plasmodium – Vector: mosquitoes – Effects in humans: Fever, vomiting, coma, death Plasmodium injected by mosquito bite Plasmodium develop inside your liver Plasmodium reproduce inside your RBCs Plasmodium reenters mosquito when bitten

12 Plant-like Protista AKA: Algae Plant-like: Photosynthetic – No roots, no leaves, usually unicellular Classified by their type of cell wall 1) Euglenoids: use flagella to swim – Plant-like: photosynthetic – Animal-like: swim

13 Plant-like Protista AKA: Algae Plant-like: Photosynthetic – No roots, no leaves, usually unicellular Classified by their type of cell wall 1) Euglenoids: use flagella to swim – Plant-like: photosynthetic – Animal-like: swim

14 Plant-like Protista AKA: Algae Plant-like: Photosynthetic – No roots, no leaves, usually unicellular Classified by their type of cell wall 1)Euglenoids – Plant-like: photosynthetic – Animal-like: swim 2) Dinoflagellates – Most plankton – Basis of aquatic food chains 3) Diatoms – Glasslike shells – Provide ~ ½ Earth’s O 2

15 Plant-like Protista AKA: Algae Plant-like: Photosynthetic – No roots, no leaves, usually unicellular Classified by their type of cell wall 1)Euglenoids – Plant-like: photosynthetic – Animal-like: swim 2) Dinoflagellates – Most plankton – Basis of aquatic food chains 3) Diatoms – Glasslike shells – Provide ~ ½ Earth’s O 2

16 Fungus-like Protista Decomposers: recycle nutrients Mobile at stages of life cycle – Spores can develop cilia Slime Molds: large (~1 meter) single celled mass of cytoplasm – Fungus & animal-like

17 Fungus-like Protista Decomposers: recycle nutrients Mobile at stages of life cycle – Spores can develop cilia Slime Molds: large (~1 meter) single celled mass of cytoplasm – Fungus & animal-like

18 Fungus-like Protista Decomposers: recycle nutrients Mobile at stages of life cycle – Spores can develop cilia Slime Molds: large (~1 meter) single celled mass of cytoplasm – Fungus & animal-like Water molds: can be parasitic – Potato blight: disease

19 Fungus-like Protista Decomposers: recycle nutrients Mobile at stages of life cycle – Spores can develop cilia Slime Molds: large (~1 meter) single celled mass of cytoplasm – Fungus & animal-like Water molds: can be parasitic – Potato blight: disease

20 Protista: The Origins of Multicellular Life Some protista are… 1) Single-celled – Live by themselves 2) Colonial – Group of independent acting cells – No specialized cells 3) Multicellular – Cells specialized to be specific jobs Importance: Ancestors of multicellular life Unicellular Euglena This is a colony of cells called Volvox Multicellular Kelp

21 Kingdom Protista Animal-like 1.Pseudopods Move with false feet 2.Flagellates Move with flagella 3.Ciliates Move with cilia Plant-like 1.Diatoms Glass-like shells 2.Dinoflagellates Plankton 3.Euglenoids Move like animals, autotrophs like plants Fungus-like 1.Slime molds Move like animals, absorb food like fungi 2.Water molds Often parasites Responsible for Irish Potato Famine

22 ReView 1) Name the three categories of protista. 2) Which category of protista has members that are able to move? 3) Which category of protista has members that absorb nutrients? 4) Which category of protista has members that are heterotrophs? 5) Which category of protista has members that hunt? 6) How does a pseudopod, flagella, and cilia differ? 7) Name the 3 major categories of protozoa. 8) Name the 3 major categories of algae. 9) Name the 2 major categories of fungus-like protista.


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