Compare and contrast the metabolism of Gallionella and Geobacter. In what habitats might you find these organisms?
Answer to relevant QuestionsWhich group of dissimilative iron-oxidizers is the least diverse and in what way is this related to oxygen and pH? Compare and contrast the metabolism, morphology, and phylogeny of purple sulfur and purple nonsulfur bacteria. Describe a key physiological feature of the following Bacteria that would differentiate each from the others: Lactobacillus, Nitrospira, and Geothrix. How can organisms such as Halobacterium survive in a high-salt environment, whereas an organism such as Escherichia coli cannot? (Section 16.1) What forms of energy metabolism are present in Crenarchaeota? What form is absent?
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