Microorganisms can have a variety of different relationships with oxygen. Describe the terms used to characterize a cell’s response to oxygen, and give an example from this chapter of an organism that can be described by each of these terms.
Answer to relevant QuestionsHow can organisms such as Halobacterium survive in a high-salt environment, whereas an organism such as Escherichia coli cannot? (Section 16.1) What two major physiological features unify species of Thermoplasmatales? Why does this allow some of them to successfully colonize coal refuse piles? If streptomycin blocks protein synthesis in organelles, what does this tell you about the organelles’ relationship to Bacteria? Summarize the evidence for endosymbiosis. How could the endosymbiotic hypothesis have originated before the era of molecular biology? How has molecular biology supported the theory? What is the GFP? In what ways does a green fluorescing cell differ from a cell fluorescing from, for example, phylogenetic staining?
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