1. Protozoans
Chapter 8

2. Protozoans 5 Groups Flagellated Amoeboid Foramanifera Ciliates
Coccidea
6th hr

3. Flagellated Have a pellicle (thin membrane) – gives body shape
Free-living
7500 species identified
2 Groups: Phytoflagellated (autotrophic) or Zooflagellated (heterotrophic)
Movement:
Use Flagella
2-D whiplike/helical movements
Push-pull
Examples:
Dinoflagellates (p)
Euglena (p)
Trypanosomes (h) – dwell in the tsetse fly gut
5th Hr Left off here!

4. Amoeboid Diet Reproduction Movement: Examples:
Other protists, bacteria
Eat by phagocytosis
Particle feeders
Reproduction
Asexual - Binary fission once they become a certain size
Some pathogenic
Movement:
Use pseudopodia – temp. cell extensions
Examples:
Rhizopodans (naked – no shell/test)
Entamoeba – causes dysentery in humans (diarrhea…)
P. 125
6th hr left off here!

6. Foraminifera Marine (Plankton) Secrete a calcium carbonate test
Symmetrical pattern
Make up much of marine sediments
White cliffs of Dover, England = Foram Chalk deposit
Movement:
Reticulopodia – (branched conveyer-belt –like)
Examples:
Heliozoans
Radiolarians
2nd hr start here

7. Ciliates Use cilia to generate feeding currents Dimorphic nuclei –
Macronuclei (regulates daily metabolic activites)
Micronucli (genetic reserve)
Sexual reproduction
Movement: cilia
Examples:
Paramecium
Didinium
5th Hr. Left off here!

8. Coccidea All Parasites Cone structure to penetrate hosts
Reproduction – asexual and sexual
Cause diseases in domestic animals and humans
Movement:
No cilia or flagella
Examples:
Toxoplasma – Mostly asymptomatic, found in cat feces
Pregnant Women - Stillbirths, spontaneous abortions, mental retardation
Cryptosporidium
Plasmodium – causes malaria
Babesia

9. Plasmodium: Causes Malaria
Chills
Fever
Rupture of red blood cells
Release of toxic chemicals