BIS 2C Study Guide - Midterm Guide: Chronogram, Synonymous Substitution, Carl Woese
6 Feb 2018
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Identified as two descendant taxa of single node. No cytoskeleton or division by mitosis have cytoskeleton and divide by mitosis. Importance of microbes to society and ecosystems: societal impacts. Morphology includes sphere, rod, square, and a-branched forms. Includes heterocysts that perform nitrogen fixation: proteobacteria (largest group of bacteria, gram-negative, origin of mitochondria, used for genetic engineering such as agrobacterium. Includes many human and animal pathogens such as yersinia pestis (bubonic plague) and vibrio cholerae (cholera) and e. coli: firmicutes, gram-positive, produce endospores that are resistant seeds that do not germinate until conditions are favorable. Include mycoplasmas that are extremely wall and have no cell wall: disease-producing agents such as anthrax and streptococcus, provide agricultural and industrial uses such as lactic acid bacteria, major groups of archaea, crenarchaeota. Include thermophiles and acidophiles: examples include sulfolobus and ferroplasma, euryarchaeota, methanogens only known methanogens that produce methane through chemoautotrophy, examples include methanopyrus within deep ocean vents, halophiles.
