NATS 1670 Lecture Notes - Lecture 24: Archaea, Acidophile, Psychrophile
17 Mar 2017
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Affect our health especially if its around 36. 5 c (optimal) Grows well at ph of 1 to 2 (acidic) (acidophiles) Grows well at ph of high as 9 (basic) Some cells can stay alive in the near absence of moisture (spores) Most cells require a moderate level of salt. Some cells can exist in very high salt concentrations (halophiles) Most microorganisms require organic and inorganic nutrients to grow and survive. Cyanobacteria grow in the absence of key nutrients: eg. can convert co2 from air into organic cellular molecules. 4. 5 billion years ago moon forms. 4. 5 4. 6 billion years ago earth formation begins. Vents are one of the most extreme environments on earth, but can be used as laboratories to study life on and beneath the seafloor. Morphologically, the two kingdoms of prokaryotes appear similar, however, they have major biochemical differences. Hot sulfur springs where they experience high temperature and low ph. Members of the archaea are not human pathogens.
