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

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

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

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

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

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

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

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

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

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

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

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.

Slime Moulds