Protist Notes

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Protist Notes
p. 468
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Protists

• Eukaryotes (have nucleus)
• Most unicellular (made of only 1 cell)
• Many kinds

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I. Animal-Like Protists (Protozoans)

• Heterotrophs (cant make own food)
• Most able to move around
• Unicellular
• Types

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Protozoan with Pseudopods(Sarcodines)

• Pseudopod false foot or bulge of cytoplasm
  used to move/feed
• Example Amoeba

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2. Protozoans with Cilia (Ciliates)

• Cilia hairlike projections that move like
  waves, used to move or get food
• Example Paramecium

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3. Protozoans with flagella (flagellates)

• Flagella long, whiplike tail
• Symbiosis relationship where at least one
  partner benefits
• Mutualism relationship when both partners
  benefit
• Parasite relationship when one partner harms
  another (its host)

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4. Protozoans that are parasites

• Feed on the cells/body fluids of their host

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II. Plantlike Protists

• Autotrophs (make own food using suns energy)
• Algae
• Important food source
• Contribute oxygen
• Many pigments (chemicals that produce color)

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1. Diatoms

• Unicellular
• Dead used as
• Polish
• Scouring
• insecticide

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2. Dinoflagellates

• Unicellular
• 2 flagella
• Some glow in dark

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3. Euglenoids

• Green
• Heterotrophs when no sun
• Example Euglena

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4. Volvox

• Volvox are round
• They live in colonies
• autotrophic

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5. Green Algae

• Most unicellular
• Found in water or land

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6. Brown Algae

• Most seaweeds
• Color green, yellow, orange, or brown
• Live in water
• Some used as food

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1. Slime molds

• Bright colors
• Vary in size
• Ooze

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2. Water mold/downy mildew

• Live in water/moist places
• Example water mold that killed Irish potato
  crops (1845, 1846)