Diversity Outline - Prokaryotes Archea Live in strange and...

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Prokaryotes - Archea - Live in strange and hostile habitats - Bacteria - spherical (cocci), rod-shaped (bacilli), or helical (spirilla) - E. coli - Peptiglycan cell walls - Heterotrophic - Receive nourishment from nutrients in their surroundings. - Aerobic: require oxygen - Anaerobic: do not require oxygen - Autotropohic - Generate their own nutrients from scratch - Photosynthetic autotrophs - Energy comes from light - Have light trapping pigments (chlorophyll) - Cyanobacteria – major group - Nitrogen fixers – can convert N 2 from the atmosphere into usable forms of nitrogen - Important in ocean - Chemosynthetic autotrophs - Energy comes from inorganic compounds Eukaryotes - Protists - Cannot be identified as fungi, plants, or animals - Diplomonads - Lack mitochondria - Have 2 nuclei - Giardia - Amoeba-Like Protists - Have pseudopodia - Amoeba - Pseudopodia: Extensions that reach out, attach, and then pull the amoeba along as it shortens while remaining attached. Also allow an amoeba to engulf food particles from its environment. -
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This note was uploaded on 03/25/2010 for the course BIO 11000 taught by Professor Friedman during the Spring '10 term at Purdue University-West Lafayette.

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Diversity Outline - Prokaryotes Archea Live in strange and...

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