Kingdom Protista

1
Kingdom Protista

• TSW identify and describe the characteristics of
  Protists

2
What is a Protist?

• Any organism that is not a plant, animal, fungus,
  or prokaryote
• First Eukaryotes (has a nucleus membrane-bound
  organelles)

3
Animal-like Protists Protozoans

• First Animals
• Heterotrophic
• 4 Phyla
• Zooflagellates
• Sarcodines
• Ciliates
• Sporozoans

4
Zooflagellates

• Animal-like protists that swim using FLAGELLA
• Absorb food through their cell membrane
• Most reproduce asexually through mitosis
  cytokinesis
• Examples Trypanosoma
• Trichomonas vaginalis

5
Zooflagellates
6
Sarcodines

• Animal-like protists that use pseudopods for
  feeding movement
• Example Amoeba
• Capture food by surrounding their meal, then
  taking it inside themselves to form a food vacuole

7
(No Transcript)
8
Ciliates

• Animal-like protists that use cilia (hair-like
  projections) for feeding and movement
• Example Paramecium

9
Paramecium Internal Anatomy

• Trichocysts small, bottle-shaped structures
  used for defense
• Macronucleus working library of genetic info
• Micronucleus Reserve copy of cells genes
• Gullet indentation in side that pushes food to
  the vacuoles
• Anal pore empties waste materials into
  environment
• Contractile vacuole cavity in cytoplasm that
  collect water

10
Sporozoans

• Animal-like protists that do not move on their
  own are parasitic
• Reproduce by sporozoites
• Example Plasmodium (causes malaria)

11
Plant-like Protists

• Some unicellular, but mostly multicellular
• Several types
• Euglena
• Diatoms
• Dinoflagellates
• Algae (Red, Brown, Green)

12
Euglena

• 2 flagella
• No cell wall

13
Diatoms

• 2 part shell of silicon (glass)
• Food stored as oil
• Responsible for most oil consumed today

14
Algae

• Vary in size
• Seaweed
• Classified by color
• Red, Green, Brown

15
Fungus-like Protists

• Slime Molds
• Heterotrophs
• Absorb nutrients from organic material
• Change form during life cycle
• Live in damp areas

16
(No Transcript)