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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

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Kingdom protista

Kingdom Protista

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

Kingdom protista


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

Water molds

Water Molds

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