Presentation on theme: "The Kingdom Protista It’s A Small World! Click here to see a live protist."— Presentation transcript:
The Kingdom Protista It’s A Small World! Click here to see a live protist
When we were a soft amoeba, in ages past and gone, Ere you were the Queen of Sheba and I King Solomon Alone and undivided, we lived a life of sloth Whatever you did I did; one dinner served us both. Anon came separation, by fission and divorce, A lonely pseudopodium I wandered on my course. ~Sir Arthur Shipley
Protozoans: Animal-like Protists Grouped by movement Mostly asexual means of reproduction Unicellular Once were classified as animals Many cause disease
Phylum Sarcodina Amoeba “The Blob” Pseudopodia Phagocytic/Pinocytic Slow Some pathogenic forms Entertaining Click here for ameboid movement movie
Phylum Zoomastigina Mast-like flagella Some parasitic Some helpful (termites)
Phylum Ciliophora Numerous cilia for movement and for gathering food Aquatic Asexual and Sexual (conjugation) Torpedo movement Paramecium moving. Click to see
Conjugation Two paramecia come together and exchange genetic material through their oral grooves. After becoming genetically altered in this way, they separate and each goes on to divide asexually.
Phylum Sporozoa Parasitic Non-motile Most produce spores Complex life cycles Malarial Plasmodium is an example See next slide for Malaria Cycle
Algae: Plant-like Protists Uni- or Multicellular Photosynthetic Once classified in Plantae Kingdom but no roots, stems, leaves Highly pigmented Base of most food chains
Phylum Euglenophyta Unicellular Aquatic Photosynthetic (autotrophic) and heterotrophic Double movement: flagella and flexing euglenoid movement Click here to watch euglena move about
Euglenoid Movement By alternation of flexing and extending the pellicle, the euglenoid is capable of this type of movement in its aquatic environment. The flagellum is also of assistance in movement and food gathering.
Phylum Bacillariophyta Diatoms: the Golden Algae Unicellular Silica shell cases (like pillboxes with lids Photosynthetic autotrophs Marine and aquatic (phytoplankton) Asexual and sexual forms of reproduction Diatomaceous earth