lecture34protists.notebook January 30, 2011 LECTURE 34 Protists Oct 158:15 AM • Protists • Eukaryotic – has a cell nucleus • Unicellular – is made of only one cell • Autotrophic and/or Heterotrophic • Autotrophic – automatically makes its own food (like a plant), usually uses sunlight for Energy • Heterotrophic – Eats other living things to get energy Oct 158:15 AM Protist Classification • If it looks like a blob and moves by pseudopods its in the group Unikonta amoebas • Amoeba • heterotrophic • engulf food by phagocytosis • move by pseudopods (false feet) Oct 158:15 AM 1 lecture34protists.notebook January 30, 2011 Amoeba • Intestinal Diseases Dysentary Oct 158:15 AM Famous Amoebas Oct 158:15 AM Protist Classification If it moves around by small hairs all over its body called cilia it is in the group Ciliophora – ciliates – paramecium Oct 158:15 AM 2 lecture34protists.notebook January 30, 2011 Paramecium • • • • • Group Ciliophora heterotrophic eat through oral groove move by cilia coordinated, rhythmic beating of small “hairs Oct 158:15 AM Ciliates Oct 158:15 AM Protist Classification • If it moves around with a long whip like structure (or two) called flagella it is in the phylum Zoomastigophora – flagellates Oct 158:15 AM 3 lecture34protists.notebook January 30, 2011 Flagellates Oct 158:15 AM Protist Classification • If it is green it is probably autotrophic. If it is autotrophic and moves around with a flagella and like an earthworm it is in the group Euglenophyta – euglena Oct 158:15 AM • Group Eugenophyta Euglena • autotrophic or heterotrophic • may ingest food if light is not available • move by flagella (whip like tails) and euglenoid motion (like an earthworm) Oct 158:15 AM 4 lecture34protists.notebook January 30, 2011 Euglena Oct 158:15 AM Colonial Protists Daughter Colony Vegetative Cell Parent Colony Green Algae Red Zygote Flagella Volvox Archaeplastida Brown Oct 158:15 AM Protist Diseases • Malaria – blood borne • African Sleeping Sickness blood bourne • Giardiasis intestinal • Trichomonas (an STD) – reproductive organs • Pneumonia lungs • Amoebic Dysentery intestinal Oct 158:15 AM 5
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