MIC 205 Final Exam questions with correct answers

Which of the following bacterial species are capable of converting nitrogen gas in the atmosphere into compounds that other organisms can better utilize? CORRECT ANSWER Rhizobium spp. : gram -, fix nitrogen Of the bacterial species listed below, which do not utilize type IV secretion to transfer DNA or proteins into eukaryotic cells? CORRECT ANSWER Neisseria gonorrhoeae Type V secretion After graduating from the University of Arizona you decided to become a benthic marine biologist (studying the sea floor). Your have been using large dragnets to collect sea floor marine life. In your first net you see a new species of anglerfish. These fish have a light organ protruding in front of their mouth that is used to attract prey fish in the dark depths of the ocean. You suspect that the light organ will contain bacteria. What species from the list below do you suspect is most likely to have colonized the light organ? CORRECT ANSWER (Alii)Vibrio fischeri - Aliivibrio fisheri; produce visible light at high bacterial concentrations. Hans Christian Gram is famous for developing a staining technique that separates pathogenic bacteria into two roughly equal sized groups. He originally developed this technique to differentiate two bacteria (one a bacillus and one a coccus) that were causing the same disease. Which of the bacteria below was the bacillus in his samples? CORRECT ANSWER Klebsiella pneumoniae : bacillus The one thing you learned by your summer at sea (question #3) is that you do not like water. You decided to return to the arid lands of Arizona where rivers only have water flowing in them a few weeks out of the year. As fortune would have it, you have been accepted into the UofA medical school. In your surgical rotation you will be learning under the tutelage of Dr. Yavan Knowsomuch. On the first day with her, Dr. Knowsomuch offhandedly rem