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Protista - Multi-Kingdom Classification Plantae Fungi...

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Multi-Kingdom Classification Plantae Fungi Animalia Protista Archaebacteria/Eubacteria Scheme is based on 3 levels of organization 1. Prokaryotic vs. Eukaryotic 2. Unicellular vs. Multicellular 3. Types of Nutrition Photosynthetic (plants) absorptive (fungi) Ingestive (animals )
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Kingdom Monera = prokaryotes Bacteria and Blue-green Algae Simplest organisms Smallest (1-10 um) Oldest (3.7 bya) Originated in anaerobic environment ( Blue-greens caused the O2 Revolution) Complex biochemistry Great diversity Enormous numbers Both helpful and harmful to humans Ubiquitous
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Eubacterium
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Nutrition primarily N 2 Fixation N 2 + 6H 2NH 3 used in synthesis of proteins and nucleic acids Anaerobic Process = Where does N 2 fixation occur? Atmosphere through lightening Fertilizer companies Blue green Algae Some bacteria can be free living or symbiotic
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Classification -Bacterial Kingdoms 1. Kingdom Archeobactria Halophiles Thermophiles Methanogens 1. Kingdom Eubacteria Decomposing bacteria Photosynthetic bacteria N2 fixing bacteria Cyanobacteria = blue-green algae
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Binary Fission
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Genetic Recombination Process of conjugation F+ pilus F- donor recipient Plasmid = extra- chromosomal DNA F+ F+ F-
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Transduction
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Transformation
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Strategies for energy capture. A. Heterotrophic Nutrition 1. Fermentation (Anaerobic metabolism) Glucose ( 6 C ) 2 ATP (Adenosine triphosphate 2 Pyruvic acid ( 3 C ) Lactic acid ( 3 C ) Alcohol 2 C Acetic acid 2 C Kreb’s cycle 2 C CO 2
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2. Oxidative Phosphorylation 2 C Into Kreb’s cycle 4 C 6 C 5 C CO 2 (H + + e - ) CO 2 Electron transport Chains 2 H + + 2 e - + O -2 H 2 O + 36 ATP
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B. Autotrophic Nutrition 1.
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