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Bacteria
Evolutionary History of Bacteria
13
Biology
Undergraduate 1
05/06/2009

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Term
Six Kingdoms of Bacteria
Definition
Proteobacteria, Green bacteria, Cyanobacteria, Gram-positive bacteria, Spirochetes, Chlamydia
Term
Proteobacteria
Definition
Putplr bsvyrtis. Gram-negative. photoautotrophs, photoheterotrophs, chemoheterotrophs. Ancestors of mitochondria.
Term
Green bacteria
Definition
Photosynthesis. Chrophyll, not the one in plants. Do not release oxygen. Sulfurous and nonsulfurous categories.
Term
Cyanobacteria
Definition
photoautotrophs. blue-green color, same photosynthesis as plants. Evolved in chloroplasts.
Term
Gram-positive bacteria
Definition
primarily chemoheterotrophs. Diverse group.
Term
Spirochetes
Definition
Helically spiraled bodies with flagellam. Corkscrew.
Term
Chlamydia
Definition
Structurally unusual --- lack peptidoglycans.
Term
Other terms
Definition
Term
Chemoautotrophs
Definition
Oxidize inorganic substances and use C02 as energy source.
Term
Chemoheterotrophs
Definition
Oxidize organic molecules for energy, obtain organic carbon.
Term
Photoautotrophs
Definition
Photosynthetic, C02 as energy source.
Term
Photoheterotrophs
Definition
Photosynthetic, Organic carbon as energy source.
Term
Gram positive v. negative
Definition
Negative has thin layer of peptidoglycans, outer membrane with lipopolysaccharides. Postive just has peptidoglycans.
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