1. Kingdom Protista, Part 2

2. Plant-like Protists (27-1 & 27-2) are classified by COLOR

3. Phylum Chlorophyta have both chlorophyll a and b (so they are green) have cellulose cell walls store carbohydrates as starch have many types of sexual reproduction exhibit many types of organization --Are thought to be the ancestors of plants--

4. Variations in Sexual Reproduction Isogamous= both sperm and egg are motile and equal in size Anisogamous= both sperm and egg are motile and differ in size Oogamous= large, nonmotile egg and small, motile sperm

5. Variations in Sexual Reproduction

6. Phylum Chlorophyta organization 1. Unicellular 2. Filamentous 3. Colonial 4. Bi-layer

7. Unicellular Green Algae Chlamydomonas

8. Chlamydomonas

9. Filamentous Green Algae Spirogyra has spiral-shaped chloroplasts

10. another filamentous Green Algae Zygnema 2 Star-shaped chloroplasts per cells

11. a colonial Green Algae … Volvox Mother colony with Daughter colonies Mother Colony Daughter Colony

12. a bi-layered Green Algae Ulva (sea lettuce)

13. a microscopic view of Ulva from the side from the top

14. Harvesting Ulva

15. Phylum Phaeophyta brown algae multicellular flagellated sperm cells Ex.: Fucus & Kelp

16. Phylum Phaeophyta: Brown Algae ex.: Laminaria, Macrocystis, Kelp Air Bladders: Used to take blades to the surface for PSN

17. are multicellular contain red accessory pigments called phycobilins gametes do not have flagella Phylum Rhodophyta: Red Algae

18. Phylum Bacillariophyta: Diatoms… have tests (shells) that contain silica (SiO 2 ), or glass

19. Diatom Strew

20. Diatoms - a SEM picture

21. formerly known as Pyrrophyta or fire algae have two flagella some are bioluminescent, producing light others produce nerve toxins –dinoflagellates are collected and concentrated in filter-feeding animals –people who eat these animals become sick Phylum Dinoflagellata

22. Phylum Dinoflagellata ex. Peridinium

23. Red Tide- results from a bloom of Peridinium

24. Phylum Chrysophyta Are golden yellow Have one or two apical flagella

25. Phylum Euglenophyta have one to three flagella at their leading (apical) end have thin protein strips called pellicles wrapped over their membranes have an eyespot that permits them to swim toward light can become heterotrophic when there is no light

26. Euglena (arrow indicates anterior end)

27. The Euglena uses a flagella as a means of locomotion.