Kingdom protista
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Kingdom Protista. Biology. What does the word Protista mean?. The word protista means “the very first”. General Characteristics of Protists. Most protists are: Microscopic Unicellular (some are multicellular ) Eukaryotic. Habitat – where do they live?. Protists can live in:

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Kingdom Protista

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Kingdom protista

Kingdom Protista

Biology


What does the word protista mean

What does the word Protista mean?

  • The word protista means “the very first”.


General characteristics of protists

General Characteristics of Protists

  • Most protists are:

    • Microscopic

    • Unicellular (some are multicellular)

    • Eukaryotic


Habitat where do they live

Habitat – where do they live?

Protists can live in:

  • Fresh water

  • Salt water

  • Moist soils

  • Other moist areas


How do protists obtain their nutrtion

How do Protists obtain their nutrtion?

Protists can be:

  • Autotrophs – They carry out photosynthesis

  • Heterotrophs – They ingest other substances.


How do protists reproduce

How do Protists reproduce?

  • Some protists reproduce asexually by binary fission.

  • Some protists reproduce

    sexually using conjugation.


Binary fission and conjugation

Binary Fission and Conjugation

Binary Fission

Conjugation


How do some protists move

How do some protists move?

  • Some use a …..

    • Flagella

    • Cilia

    • Pseudopodia


3 main groups

3 main groups

  • Animal –like Protists (Protozoans):

    • Paramecium and Amoebas

  • Plant-like Protists: Algae

  • Fungus-like Protists: Water Molds and Slime Molds


Animal like protists

Animal Like Protists

  • They are similar to animals in the following ways:

    • No cell walls

    • No chloroplasts. This makes them heterotrophs

  • They are different than animals in the following way:

    • They are unicellular whereas animals are multicellular.

  • Examples: Paramecium and Amoebas


Kingdom protista

Paramecium

Amoeba


Adaptations of animal like protists

Adaptations of Animal-like Protists

  • Pseudopodia

    • “False foot”

    • An extension of the cytoplasm that aids in movement and capturing of food

      http://www.youtube.com/watch?v=7pR7TNzJ_pA&feature=related

  • Contractile Vacuole

    • Pumps out excess water

    • Prevents bursting from living in watery environments.

      http://www.youtube.com/watch?v=4z98WIeNtjM


Plasmodium

Plasmodium

  • Animal like protist that causes malaria

    Check out this video clip about the lifecycle of the Plasmodium.

    http://highered.mcgraw-hill.com/olc/dl/120090/bio44.swf


More on plasmodium

More on Plasmodium

  • Mosquito bites a person infected with malaria.

  • The plasmodium enters the mosquito and reproduces in the gut of the mosquito.

  • Plasmodium enters the mosquito’s salivary glands.

  • Infects the next person the mosquito bites!!!


Plant like protists

Plant Like Protists

  • They are similar to plant in the following ways:

    • Have a cell wall

    • Have chloroplasts, which makes them autotrophs

  • They are different than plants in the following ways:

    • They are motile (can move)

    • Their cell walls are made of chitin, where plant cell walls are made of cellulose

    • They have no roots, stems or leaves

  • Examples: Algae and Euglena


Kingdom protista

Euglena

Algae


Fungus like protists

Fungus Like Protists

  • They are similar to fungi in the following ways:

    • Decompose organic material, which makes them heterotrophs.

  • They are different than fungi in the following ways:

    • Are motile

    • Have cell walls made of cellulose, where fungi have cell walls made of chitin.

  • Examples: Slime molds and water molds


Kingdom protista

Slime Mold

Water Mold


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