Sample exam2answers

Sample exam2answers - 1 , a b

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Sample Questions for EXAM 2 1.  During the chemiosmosis of prokaryotes, which of the following occurs? a. Pyruvate molecules go through anabolic reactions to produce glucose. b. Protons pass through ATP synthase to re-establish equilibrium within the cell cytoplasm and  the energy released is used to couple an inorganic PO 4 -  group with ADP. c. NADH is recycled to NAD +  when electrons are donated to an organic compound. d. RNA primers are synthesized against the DNA template in order to provide a starting point  for DNA synthesis. 2. Which of the following components is not required for the photophosphorylation of ATP? a. photosynthetic pigment b. phosphorylated glucose c. flavoprotein d. cytochrome 3. Which of the following pathways directly produce ATP via oxidative level phosphorylation?   a. TCA cycle b. fermentation c. light-independent reactions d. none of the above 4. Which of the following methods should be employed to sterilize electrical implants such as  pacemakers? a. UV light exposure b. steam heat (autoclaving)
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aldehyde exposure (>12 hrs) d. ethylene oxide exposure 5. Which of the following is  TRUE ? a. Fermentation requires oxygen to be present in order to occur. b. The majority of ATP produced by an aerobically respiring microbe (per glucose molecule) is  made by substrate level phosphorylation. c. GTP produced in the TCA cycle undergoes oxidative phosphorylation to produce ATP. d. Aerobically respiring bacteria typically produce more ATP per glucose molecule than  anaerobically respiring bacteria.  6. Which of the following is  TRUE  regarding the effectiveness of antimicrobial agents? a. In a closed system that has been treated with a cidal agent, when the antimicrobial agent is  removed, growth of microbes will begin again. b. A 70% concentration of an antimicrobial agent is more effective than a 100% concentration  of the same agent. c. Decreasing the pH of antimicrobial agents decreases the effectiveness of the agent. d. The presence of organic material does not alter the effectiveness of an antimicrobial agent. 7.    A mutant strain of  E. coli  has been created that lacks the ability to produce enzymes that  are employed by the Embden-Meyerhoff pathway.  The strain is still capable of heterotrophic  growth using glucose and pyruvate has been found as a by-product of glucose catabolism.  Using this information, which of the following pathways must the mutant strain be using to  produce pyruvate? a.
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This note was uploaded on 03/08/2011 for the course MICRO 3500 taught by Professor Dustman during the Spring '10 term at UGA.

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Sample exam2answers - 1 , a b

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