1. Plants, Animals, Fungi and Protista
Domain Eukaryota
Plants, Animals, Fungi and Protista

2. Protista mainly unicellular eukaryotes.
believed that the other eukaryotic kingdoms evolved from protista.
protists are classified in 3 phyla based on nutrition:
Protozoa
Algae
Slime moulds.
Protists
Protozoa
Algae
Slime mould

3. Eukaryotic Cell Formation
2 hypothesis how evolved from prokayotes
internal organelles (ER, Golgi and nucleus) formed when cell mem. folded in on itself in ancient prokayotes
mitochondria and chloroplast evolved from small prokaryotic cells living symbiotically within larger ones

4. Protozoans – Animal-like Protists
over 30,000 species with a great variety in appearance.
heterotrophic
most are motile
lack cell walls
3 classes

5. Amoeba (class sarcodines)
feed on small organisms like bacteria, using pseudopods to engulf them.
are able to move using their pseudopods.

6. Trypanosoma (class flagellates)
cause African Sleeping Sickness
move around using a flagellum.

7. Paramecium (class Ciliates)
found in pond water
move around by using cilia (hair- like covering).

8. Algae (Plant-Like Protists)
aquatic, chlorophyll-containing organisms
range in size from single cells to giant seaweeds 60 metres in length.
could almost be classified as plants, except lack leaves, stems, roots.
Algae

9. Brown Algae (Class Phaeophytes)
multicellular
many species can be quite large
ex Kelp

10. Diatoms (class Chryspohytes)
small
unicellular
over 10, 000 species.

11. Red Algae (class Rhodophytes)
multicellular
found in warmer seawater.

12. Slime Moulds and Water Moulds
are similar to fungi (produce spores), plants (have cellulose cell walls) and animals (glide around to ingest food) in some ways.
they generally live off of decaying organic matter.

13. Slime Moulds