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16 Cards in this Set
- Front
- Back
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anoxic atmosphere |
metabolism was exclusively anaerobic until evolution of oxygen producing phototrophs |
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LUCA |
Last Universal Common Ancestor |
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Evolution |
The process of change over time that results in new varieties and species of organisms |
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Phylogeny |
Evolutionary relationship between organisms, deduced by comparing genetic info in different specimens |
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Extremophiles |
Bacteria and Archaea that can grow in extremely harsh environments |
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Microbial life global estimate |
5x10^30 cells |
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Robert Hooke (1635-1703) |
First to discover microbes |
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Antonio Van Leevwenhoek (1632-1723) |
First to describe bacteria |
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Ferdinand Cohn (1828-1898) |
founded the field of bacterial classification and discovered bacterial endospores |
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Louis Pasteur (1822-1895) |
discovered organisms discrimination between optical isomers. discovered alcohol fermentation was a biological process. developed vaccine for anthrax, fowl cholera and rabies |
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Robert Koch (1843-1910) |
identified causative agents of anthrax and tuberculosis. developed techniques for obtaining pure culture of microbes |
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Koch Postulates |
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Harber Process |
industrial production of ammonia cost 1-2% of global energy production and produces 1% of man-made greenhouse gases |
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Diazotrophy |
ability to fix atmospheric nitrogen to biologically relevant & usable compound |
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Photoautotrophic cyanobacteria |
>100, 000 per ml of seawater. smallest known oxygenic photoautotroph |
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Streptomyces spp. |
symbiosis with Acromyrmex ants. makes most of the antibiotics in clinical uses |
