1. Protists and Fungi

2. Protist Oldest Eukaryotic Cells - 2 Billion Years ago
Live in a variety of environments: water, soil, trees
Shared characteristics of protists
All eukaryotes
All do not fit into any of the other kingdoms

3. What is a Protist? Most diverse kingdom of organisms
May be unicellular or multicellular
Microscopic or large (algae)
Autotrophs or Heterotrophs
Asexual or Sexual reproduction
Movement by: Flagella, cilia or pseudopodia

4. Protist are Classified by:
Animal-Like: move & consume other organisms
Plant-Like: photosynthetic, algae
Fungus-Like: reproduction is similar to fungus

5. What is a Protozoan? Protozoa- Animal like protists
Unicellular heterotrophs
Feed on other organisms or dead organic matter
Usually reproduce asexually, some sexually

6. What is a Protozoan? Amoebas Flagellates
Pseudopodia – movement & feeding
Radiolarians- Important part of marine food chain
Flagellates
Can harm (African sleeping sickness)
Can help (termites)

7. What is a Protozoan? Ciliates
Reproduce asexually (binary fission)& sexual (conjugation)
Ex: paramecium
Genetically Identical
to parent
Genetically different

8. What is Algae? Algae- Plant like protists Can be Uni- or Multicellular
Photosynthesize
Pigments make these protists a variety of colors and color can be used to classify them.

9. What is Algae?
Algae produce much of the Earth’s oxygen and are the basis of aquatic food chains (like plants are for food chains on land).
No true roots, stems or leaves

10. What is Algae? Diatoms Dinoflagellates- Can be very harmful Ex:
Photosynthetic unicellular algae are called Phytoplankton
Diatoms
Dinoflagellates- Can be very harmful
Population increases cause Red Tides-toxins can kill fish & humans who eat affected fish.

11. Dinoflagellates
Link

12. What is Algae? Ex: Green algae Volvox live in colonies
Spirogyra reproduce asexually by fragmentation
Red algae- seaweeds, can live in deep water
Brown algae- Kelp

13. What are “Fungus Like” Protists?
Unlike Fungi, Fungus like protists are able to move and do not have chitin in their cell walls.
Classified by the way they reproduce
Slime molds – sexual
Reproduction (spores)
Water Molds and Downy Mildews – asexual & sexual reproduction

14. Fungus Kingdom

15. What is a Fungus? Have chitin in their cell walls
Most multicellular, some unicellular
Heterotrophs – do not make their
Own food, they absorb nutrients.

16. Structure
Hyphae- basic structural unit, threadlike filaments that develop from fungal spores
Mycelium- a network of branched hyphae
Ex: Yeast, molds

17. What is a Fungus? Negative affects- Positive affects
can spoil food,cause diseases, or be poisonous (some mushrooms) , allergies to mold & spores
Positive affects
Decompose large quantities of organic waste

18. What is a Fungus? Reproduction – Sexual & Asexual
Fragmentation- Asexual reproduction where pieces of hyphae are broken off and new mycelia grow
Budding- Asexual reproduction where a new individuals pinch off
Reproducing by spores- Sexual & Asexual. A spore is a reproductive cell that can develop into a new organism.

19. Plant Like Protists vs. Plants
Plant-like protists are like plants in many fundamental ways.
They are autotrophs that obtain food from sunlight.
Most Plant like protists can move from place to place to hunt their food.
The main difference between Plants and Plant-like protists is that Plant-like protists are always Unicellular.

20. Fungus-like Protist vs. Fungus
Fungi-like protists are like Fungi in many fundamental ways.
They are Heterotrophs that obtain food from .
Most Fungi-like protists can move from place to place to hunt their food.
The main difference between Fungi and Fungi-like protists is that Fungi-like protists are all motile (move) at some point in their life cycles..

21. Animal – like Protist vs. Animals
Amoeba
Animal – like Protist vs. Animals
Animal-like protists are like animals in many fundamental ways.
They are Heterotrophs that must obtain food by consuming other organisms.
Most Animal like protists can move from place to place to hunt their food.
The main difference between Animals and Animal-like protists is that Animal-like protists are always Unicellular.

22. THE END!