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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 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
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

  • 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

  • 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

  • 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
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
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 protozoans1
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
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 protista1
Plant-Like Protista

  • Euglenoids are single celled plant-like protista that swim with the aid of one or more flagella


Plant like protista2
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 protists1
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

Diatoms are soo pretty
Diatoms are soo Pretty !

Green algae
Green Algae

  • Most species of green algae are aquatic.


Brown algae
Brown Algae

  • Brown algae include the giant kelp that form thick underwater forests.

Red algae
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 Protista

  • Fungus like protists are valuable decomposers in the ecosystems. Two types of Fungus like protists are

    • Slime Molds & Water Molds

Slime molds
Slime Molds