Kingdom Protista
Biology
Kingdom
Archaea
bacteria
Eubacteria
Protista
Fungi
Plantae
Animalia
Uni
cellular
Multi
cellular
Auto
trophic
Hetero
trophic
Cell
wall
No
cell
wall
Eu
karyotic
Pro
karyotic
Interesting Fact
Characteristics of Kingdoms
x
x
x
x
x
Tough!! Live in
extreme conditions
x
x
x
x
x
Typical Bacteria.
Cause illness and
used for food, etc.
Very common
What is a protist?
Algae
Volvox
Radiolarians
Euglena
Red tides caused by dinoflagellates
 Protists can:
 Be Unicellular or Multicellular
 Be Microscopic or very large
 Be Heterotrophic or Autotrophic
 Reproduce Sexually or Asexually
But…
 ***ALL ARE EUKARYOTIC***
 Have a true nucleus and membrane bound
organelles
“Junk Drawer” Kingdom
 Organisms that are eukaryotic but don’t
fit well in other Kingdoms are placed
here!
II. Three Groups of Protists
 A. Animal-like
 B. Plant-like
 C. Fungi-like
A. Animal-like
 Protozoa: Animal
like protists

Heterotrophic
 All unicellular
Animal Like Protists-4 types
 Shapeless protists
 Flagellates
 Ciliates
 Sporozoa
Shapeless protists
 Phylum Rhizopoda
 No cell wall
 Form Pseudopodia



Pseudo = fake
Pod = foot
Extension used for
feeding and moving
Flagellates
 Phylum
Zoomastigina


Have flagella: a whip
like tail used for
movement
Can be parasites
and cause diseases


African sleeping
sickness
Can be helpful

Termite guts
Ciliates
 Phylum Ciliophora
 Have Cilia: small hair like projections used for
movement and feeding
Sporozoans
 Phylum Sporozoa
 Most produce spores
 All are parasites

Malaria
B. Plant-like Protists…
 Algae: Plant like
protists

Uni or multicellular
 Autotrophic
(photosynthetic)
 No roots, stems,
leaves
Algae: Plant like protists
 Typically
water-related
 Same function as terrestrial plants
1/3 of oxygen production
 Base of aquatic food webs

Phytoplankton
 Typically found near surface of water
 Diatoms
Shells of silica
 Major part of Mississippi River Food Chain
 Used in toothpaste, cat litter, etc.

Cont.
 Dinoflagellates
 “Red
Tides”
 Produce toxins that are poisonous to
vertebrates
Phytophthora infestans
Green, Brown, Red Algae
 Brown and Red often called “seaweed”
 Green algae “pond scum”
 Kelp-brown
 Porphyra-red
 Spirogyra-green
C. Fungi-like Protists
 Fungus like protists
 Decomposers
 Can move at some
time in their life
 No chitin in cell wall
 Slime Molds
Appear much like fungus
 Potato Famine-1840’s Phytophthora infestans.

– 1 million dead, 1 million left