BIOL 3332 Micro Biology Exam 3. Complete Solution. Latest 2022

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BIOL 3332 Micro Biology Exam 3. Complete Solution. Latest 2022.You scored 85.34 out of 103 Question 1 Your answer is CORRECT. Which of the following statements is true regarding the electron donors... in bacterial metabolism? A) The use of inorganic compounds as electron donors is known as organotrophy. B) Lithotrophy refers to the use of organic molecules as electron sources. C) Organotrophs perform photolysis of small organic molecules. D) Fe2+, H2S, or H2 would be electron donors for lithotrophs. E) None are true; all are false statements. Question 2 Your answer is CORRECT. Which glucose catabolic pathway (A, B, C) is not correctly matched? A. Embden-Meyerhof-Parnas (Glycolysis) Pathwy B. Entner-Doudoroff Pathway C. Pentose-Phosphate Shunt A) Sugar acids catabolized to key intermediate, 6-phosphogluconate, then to pyruvate: B B) Primarily used to form building blocks for biosynthesis: C C) Ribulose-5-P is the key intermediate to make 3-7 carbon sugars to form aromatic amino acids or purine nucleotides: C D) All are matched correctly. Question 3 Your answer is CORRECT. Fermentation can be defined as completion of metabolism: A) with an electron transport system B) with a terminal electron acceptor C) without further production of ATP after a few substrate-level phosphorylation reactions D) in the presence of oxygen E) all of the above Question 4 Your answer is CORRECT. The diagram above depicts a cell and some of the catabolic processes occurring therein (e- represent electrons). Which of the following statements is correct? A) The mode of respiration (aerobic/anaerobic) would be determined by molecule C. B) Cytochromes would likely be found in the structure labeled D. C) One would determine lithotrophy by determining the nature of molecule E. D) The multi-step process of A converting to B could comprise glycolysis and the Krebs cycle. E) Two of the above are correct. Question 5 Your answer is CORRECT. Which does apply to the oxidative catabolism of aromatic compounds such as toluene and other benzene derivatives? A) It requires fermentation. B) It does not incorporate oxygen into the pathway intermediates. C) It forms the key intermediate catechol. D) It eventually feeds into the Pentose Phosphate shunt. [Show More]

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