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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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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


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
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

  • Contractile Vacuole
    • Pumps out excess water
    • Prevents bursting from living in watery environments.

  • Animal like protist that causes malaria

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

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



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

Slime Mold

Water Mold