What did you see?

1. What did you see?

2. Amoeba Sarcodines Paramecium Ciliates Euglena Algae

4. ProtistsSection 3 • Protists are eukaryotes that can not be classified as animals, plants or fungi. • Because protists are so diverse they are grouped according to the characteristics they share with organisms in other kingdoms.

5. Animal-LikeProtists • Animal-like protists are heterotrophs and most are able to move from place to place to obtain food, however, unlike animals they are unicellular. • Animal-like protists may be called protozoans.

6. Animal-LikeProtists • Protozoans with Pseudopods (ex. Amoeba) • Protozoans with Cillia (ex. Paramecium) • Protozoans with Flagella (ex. Peranema) • Protozoans that are Parasites. (ex. Plasmodium)

7. Pseudopods (Amoeba)

8. Cilliates (Paramecium)

9. Flagellates Giardia Trichonympha Parasites Plasmodium

10. Plant-LikeProtists • Plant-like protists are commonly called alage. They are grouped together because, like plants, they are all autotrophs. Diatoms Euglena Dinoflagellates

11. Plant-LikeProtists • Plant like protists play an important role in ecosystems. • They provide a source of food for many other organisms • They make much of the oxygen that makes up the Earths atmosphere.

12. Algae (Euglena)

13. Fungus-LikeProtists • Like fungi, fungi-like protists are heterotrophs, have cell walls, and use spores to reproduce. Water Mold Slime Mold Downy Mold

14. FungiSection 3 • Fungi are eukaryotes that have cell walls, are heterotrophs that feed by absorbing their food, and use spores to reproduce.

15. FungiCell Structure • Fungi may be unicellular, like yeast, or mulitcellular. • The cells of multicellular fungi are arranged into branching threadlike tubes called hyphae. What a fungus looks like depends on how the hyphae are arranged.

16. FungiObtaining Food • First fungi grow hyphae into a food source. • Then digestive chemicals ooze from the hyphae into the food, breaking it down into small substances that can be absorbed by the hyphae.

17. FungiReproduction • Fungi usually reproduce by making lightweight spores in reproductive structures called fruiting bodies. The spores can then be carried easily through the air or water to new sites. • Most fungi reproduce both sexually and asexually.

18. FungiReproduction • Asexual Reproduction: Cells at the tips of the hyphae can divide to form spores, which grow into fungi that are genetically identical to the parent. • Sexual Reproduction: Hyphae of two fungi can grow together and exchange genetic material, then grow a new spore producing structure.

19. Fungirole in nature • Fungi are food • Fungi are environmental recyclers • Fungi fight disease • Fungi cause disease • Fungi help plants grow

20. Symbiosis • Symbiosis is a close relationship between two different species, in which at least one of the species benefits from the partnership. • If both species benefit it is called symbiotic mutualism.

21. Symbiosis

22. SymbiosisLichen – Relationship Between Algae and Fungi

23. Fungi are _______, ________ and have ______ ________. • The cells of fungi are arranged in threadlike tubes called ________ • Fungi reproduce using ________ which are produced in structures called ________ _________. • How are fungi classified? • Explain different roles of fungi in nautre.

24. Fungi are _______, ________ and have ______ ________. • The cells of fungi are arranged in threadlike tubes called ________ • Fungi reproduce using ________ which are produced in structures called ________ _________. • How are fungi classified? By how they produce their spores, (club, sac, or zygote) • Explain different roles of fungi in nature. Food, medicine, environmental recyclers, symbiotic partners, diseases eukaryotes heterotrophs Cell walls hyphae spores Fruiting bodies