11.2 True/False Questions 1) Bacterial predators such as Bdellovibrio are members of the betaproteobacteria. Answer: FALSE Section: 11.2 Bloom's Taxonomy: Knowledge ASMcue Outcome: 5.4 Learning Outcome: 11.4 2) Two distinguishing factors of the epsilonproteobacteria that they are motile and microaerophilic. Answer: TRUE Section: 11.2 Bloom's Taxonomy: Knowledge ASMcue Outcome: 1.2 Learning Outcome: 11.5 3) Myxobacteria are classified as actinobacteria due to fungal-like lifestyle. Answer: FALSE Section: 11.2 Bloom's Taxonomy: Knowledge ASMcue Outcome: 1.2 Learning Outcome: 11.4 4) The Gram stain is not suitable for identifying members of the Archaea. Answer: FALSE Section: 11.4 Bloom's Taxonomy: Knowledge ASMcue Outcome: 1.2 Learning Outcome: 11.11 5) The deinococci can be categorized as extremophiles. Answer: TRUE Section: 11.2 Bloom's Taxonomy: Knowledge ASMcue Outcome: 3.3 Learning Outcome: 11.8 6) All gram-negative bacteria are classified as proteobacteria. Answer: FALSE Section: 11.2 Bloom's Taxonomy: Comprehension ASMcue Outcome: 1.5 Learning Outcome: 11.6 16 7) The majority of bacterial species on Earth have not been successfully cultivated. Answer: TRUE Section: 11.5 Bloom's Taxonomy: Knowledge ASMcue Outcome: 1.2 Learning Outcome: 11.12 8) Photosynthetic organisms always produce oxygen gas as a metabolic byproduct. Answer: FALSE Section: 11.2 Bloom's Taxonomy: Comprehension ASMcue Outcome: 3.1 Learning Outcome: 11.7 9) Currently, no members of Archaea have been linked to human disease. Answer: TRUE Section: 11.4 Bloom's Taxonomy: Knowledge ASMcue Outcome: 5.4 Learning Outcome: 11.11 10) The human body is typically free of archaeal species. Answer: FALSE Section: 11.4 Bloom's Taxonomy: Knowledge ASMcue Outcome: 5.4 Learning Outcome: 11.11 11.3 Essay Questions 1) Explain the rationale for using molecular data for classification, in the place of morphology. Section: 11.0 Bloom's Taxonomy: Evaluation ASMcue Outcome: 1.5 Learning Outcome: 11.12 Global Outcome: 8 2) The use of culture-independent techniques has increased our understanding of microbial diversity without cultivation. Therefore, do microbiologists still need to attempt to grow new microbial species? Explain. Section: 11.5 Bloom's Taxonomy: Evaluation ASMcue Outcome: 8.3 Learning Outcome: 11.12 Global Outcome: 8 17 3) Bacteroides and Escherichia are both gram-negative rods found in the large intestine. Why are they in different phyla? Section: 11.2 Bloom's Taxonomy: Analysis ASMcue Outcome: 1.5 Learning Outcome: 11.3 Global Outcome: 8 4) A colleague proposes that the Archaea may be the oldest life forms currently inhabiting Earth. Do you agree? Explain. Section: 11.4 Bloom's Taxonomy: Evaluation ASMcue Outcome: 1.1 Learning Outcome: 11.11 Global Outcome: 8 18