Questions on Chapter 10 Multiple Choice: Choose the best answer. 35. Which of th
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Questions on Chapter 10 Multiple Choice: Choose the best answer. 35. Which of the following is NOT an example of a positive role that bacteria play in an ecosystem? a. fixation of carbon dioxide into biomass b. oxygen production breakdown of pollutants d. e. pathogenic relationship with humans 36. A bacterial disease previously known to only infect dogs begins to cause respiratory infections in humans who are in close contact with infected dogs. Which of the following explanations most likely explains the emergence of this new human pathogen? a. The genome of the bacterium changed through horizontal gene transfer within the b. There was a mutation in the human genome that allowed the bacterium to attack human c. The bacterium became infected by a mutation-inducing virus transmitted through flea bites d. The bacterium forms dormant endospores that remain in the environment even after the microbiota of the dog. cells more vigorously on the dog infected dogs are removed. 37. The mycelia of Streptomyces and other actinomycetes are known to produce a lactic acid. c. antibiotics. d. statins. b. endospores Which one of the following discases is NOT caused by Actinobacteria? b. leprosy 38. c. diphtheria d. botulism 39 Which of the following does NOT accurately describe Psendomonas aeruginosa? causes opportunist infections in human surgical wounds a. b. may form biofilms on pulmonary lining of cystic fibrosis patients c. commonly grows in soil as a decomposer d. may infect fleas, which transmit P. aeruginosa to humans 40. Which of the following species causes an illness that can be prevented by immunization? a. Bordetella pertussis b. Neisseria gonorrhoeae c. Vibrio cholera d. Helicobacter pylori 41. There are maultiple causativce agents of the following pairs below include two bactra species known to cause pneumonia? a. Haemophilus influenzae and Moraxella catarrhalis b. Neisseria gonorrhoeae and Vibrio cholera c. Vibrio parahaemolyticus and Bordetella pertussis d. Helicobacter pylori and Francisella tularensisExplanation / Answer
35) Bacteria apart from causing diseases also has some positive effects. These are listed below,
Pathogenic relationship with humans is a negative effect. So, the answer for this question is option d.
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