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Kingdom Protista. Kingdom protists is the most diverse of all the Kingdoms A Protist is a ____________ that is not officially a Plant, ________, or _________. They lack one or more characteristics that would place them in these categories. . Protist Classification.
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Kingdom protists is the most diverse of all the Kingdoms A Protist is a ____________ that is not officially a Plant, ________, or _________. They lack one or more characteristics that would place them in these categories.
Protist Classification • Protists can be classified into three categories loosely on how they obtain food. The three categories of Protists are; • Animal- Like • Plant- Like • Fungus- Like
Animal- Like Protists • Animal- Like Protists can all move and are Heterotrophs. • All Animal-Like Protists are unicellular, while animals are multi-cellular
Plant-like Protists • Plant-like protists make their own food by photosynthesis just as plants do. • All True plants have roots, stems and leaves, and are multicellular • Plant like protists can be unicellular, colonial, or multicellular
Fungus-Like Protists • Fungus-Like Protists decompose dead organisms. There protists were once placed in the same kingdom as true fungi. • However, fungus-like Protists CAN move during part of their life cycle, whereas true fungi can NOT.
Animal-Like Protists aka Protozoan's • Protozoan are often classified by how they move. • Zooflagellatesare animal-like protists that have flagella at some point in their life cycle. • More than 2000 species of Zooflagellates exist. • Some Zooflagellates cause disease • Ex. African sleeping sickness
Animal-Like Protists AKA Protozoans • Some protozoans called pseudopodia move using a pseudopod which means “false foot” • An amoeba can live in freshwater, salt water or soil. Foraminifera live in salt water • YouTube - Amoeba in motion
Animal-Like Protists AKA Protozoans • Protozoans that move using cilia are called Ciliates (shocking). Cilia are short hair like structures that that help protists swim and capture food. YouTube - Paramecium Feeding • Some ciliates are parasites that cause disease, most are free living found in common pond water
Plant-Like Protista • Unlike Plants which are all multi cellular; plant like protists can be unicellular, colonial, or multicellular. • Photosynthetic plant-like protists are called Algae. • Algae are not true plants because they do not have roots, stems or leaves
Plant-Like Protista • Euglenoids are single celled plant-like protista that swim with the aid of one or more flagella • http://www.youtube.com/watch?v=0rNI8Bos_BQ
Plant-Like Protista • Dinoflagellates- Most live in salt water. Some produce toxins that can produce red tides and kill large numbers of fish
Plant-Like Protists • Diatoms- single celled, covered with delicate glasslike shells. They can be found in fresh, or salt water. • Diatoms produce approx half of the earths atmospheric oxygen
Green Algae • Most species of green algae are aquatic. • http://www.youtube.com/watch?v=u9WUbDPVvKA
Brown Algae • Brown algae include the giant kelp that form thick underwater forests.
Red Algae • This group of algae can grown a deeper depths than any other algae. It’s red pigments are able to absorb the blue light that reaches the deepest level of the ocean
Fungus Like Protista • Fungus like protists are valuable decomposers in the ecosystems. Two types of Fungus like protists are • Slime Molds & Water Molds
Slime Molds http://www.youtube.com/watch?v=GScyw3ammmk
