Lecture 9 - Protists0

Lecture 9 - Protists0 - feeding groove 2. Examples a....

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Lecture Outline 9 – Protisa I. What are protists? A. Eukaryotes that are not fungi, plants and animals B. Paraphyletic group C. Unifying traits 1. Usually unicellular 2. Membrane bound organelles and nucleus 3. Usually aquatic 4. Nutritionally diverse (autotrophs, hetertrophs and mixotrophs) 5. Sexual and asexual reproduction (meiosis and mitosis) II. Protits (eukaryote) origins A. Eukaryotic heterotrophy engulfs photosynthetic cyanobacterium (primary endosymbiosis). B. Bacterium membrane lost, forms organelle (i.e. chloroplast). New organism known as algae C. Eukaryotic heterotrophy engulfs algae (secondary endosymbiosis) III. Five supergroups A. Excavata 1. Unifying traits a. Highly modified mitochondrira, multiple flagella, 'excavated'
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Unformatted text preview: feeding groove 2. Examples a. Giardia b. Trichomonis c. Euglena d. Trapanosoma B. Chromalveolata 1. Derived from secondary endosymbiosis of red algae 2. Examples a. Dinoflagellates b. Apicomplexa c. Ciliates d. Diatoms e. Brown algae Lecture Outline 9 Protisa C. Rhizaria 1. Amoeba like; thread-like pseudopodia 2. Examples a. Foraminifera b. Radiolarians D. Archaeplastida 1. Main groups include red algae, green algae and land plants 2. Examples a. Red algae b. Green algae E. Unikonta 1. Amoebazoans; tube-like pseudopodia 2. Examples a. Plasmodial slime mold b. Cellular slime mold c. Entamoeba...
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Lecture 9 - Protists0 - feeding groove 2. Examples a....

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