BIO250 EXAM 3 Unit 9 Microbial Genetics LAB QUIZ[ ALL ANSWERS 100% CORRECT]

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Page path  BIO250_Saylor_V5  Unit 9: Microbial Genetics Started on Wednesday, October 13, 2021, 6:34 AM State Finished Completed on Wednesday, October 13, 2021, 6:57 AM Time taken 23 mins ... 52 secs Grade 90.00 out of 90.00 (100%) Question 1 Correct 4.50 points out of 4.50 Flag question Question text Many lakes in the United States are suffering from periodic algae blooms, which can be thought of as an infection of the lake. Although the algae are naturally-occurring in the lake, when adjacent farm fields are over-fertilized with diammonium phosphate, the run-off deposits these nutrients in the lake, allowing the algae to grow without limit. Which of the following statements is incorrect regarding the overgrowth of algae? Select one: a. The algae are heterotrophs. b. The nitrogen in the fertilizer is in the ammonium form, the preferred nitrogen source of most microbes. c. The phosphorus in the fertilizer is in the phosphate form, the preferred phosphorus source of most microbes. d. The carbon source for these algae is not limiting in lakes. e. Lakes have sufficient micronutrients for algae to grow. Question 2 Correct 4.50 points out of 4.50 Flag question Question text E. coli bacteria normally live in the human gut and produce vitamin K that the body uses. This is best termed a ______ relationship. Select one: a. parasitic b. saprobic c. antagonistic d. mutualistic Question 3 Correct 4.50 points out of 4.50 Flag question Question text As described in "A Note About Bacterial Reproduction -- and the "Culture Bias,"" the organism Epulopiscium does not divide by binary fission. Rather, each cell increases in size and divides to produce multiple daughter cells that are held within the original cell well. After lysis, those daughters are released to repeat the process. Assuming Epulopiscium could be grown in pure culture in the laboratory in broth and on solid media (it currently cannot), which method would be best for measuring the increase in biomass during growth? Select one: [Show More]

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BIO250 EXAMS[GRADED A+]

BIO250 EXAM 1 Unit 3 Tools of the Laboratory[A+ ASSURED] BIO250 EXAM 2 Unit 6 Introduction to the Viruses[ ALL ANSWERS 100% CORRECT] BIO250 EXAM 3 Unit 9 Microbial Genetics LAB QUIZ[ ALL ANSWERS 100...

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