1. An introduction to parasitic protozoa: Form, function and life cycles BIOL 413

2. Taxonomists currently recognize 7 phyla Sarcomastigophora, which includes the subphyla Sarcodina and Kinetoplastida Labyrinthomorpha, Apicomplexa, Microspora, Ascetospora, Myxozoa, Ciliophora

3. Of these groups, 4 are considered most important sources of human or veterinary parasites Sarcodina (Amoebas, e.g. Entamoeba histolytica) Mastigophora (Flagellates, e.g. Trypanosoma spp., Leishmania spp., Trichomonas vaginalis) Apicomplexa (possess an apical complex, e.g. Plasmodium spp., Eimeria spp., Isospora spp.) Ciliophora (ciliated protists, e.g. Balantidium coli, Ichthyophthirus multifiliis)

4. Distinguishing characteristics. I.: Modes of locomotion

5. Distinguishing characteristics. II.: Modes of reproduction

6. Distinguishing characteristics. III. Modes of metabolism

7. Examples. 1. Sarcodina

8. Examples. II. Mastigophora) Trichomonas vaginalisTrypanosoma spp. in blood Giardia lamblia (L) trophozoite; (R) cysts

9. Examples. III. Apicomplexa Plasmodium spp. life cycle Insect & human stages

10. Examples. IV. Ciliophora Balantidium coli trophozoiteBalantidium coli cyst Ichthyophthirus multifiliis