BIO 315 spring 2010 midterm1v1

BIO 315 spring 2010 midterm1v1 - BIO 315 MICROBIOLOGY: MID...

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BIO 315 – MICROBIOLOGY: MID TERM EXAM 1 – Spring 2010 Please fill in your name and ID number on your answer sheet before starting. Do not write anything under the column marked birthdate. Answers to the multiple choice questions must be filled in on the answer sheet with a #2 pencil. There are 40 multiple choice questions. (1 pt. each) Answer sheets and essay sheets will be collected when time is called at 5:10. If you finish before that time you may hand in your answer sheets and leave the room. Please keep your copy of the exam. Answers and grades will be posted ASAP on Blackboard. SELECT THE BEST ANSWER!! GOOD LUCK!
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1. An organism uses the sulfate ion as the terminal electron acceptor in a fundamental catabolic energy-releasing pathway. This organism is undergoing: A. fermentation B. aerobic respiration C. anabolic dehydration synthesis D. hydrolytic autophagy E. anaerobic respiration @ 2. Protozoa A. May be classified in either the kingdom Animalia or Monera. B. Are all unicellular eukaryotes with NO cell wall. @ C. May be capable of photosynthesis. D. Include the paramecium, algae, and microscopic worms. E. Are all plant-like, have a cell wall, and can photosynthesize. 3. You are observing a single-celled organism under the microscope and notice that it contains both mitochondria and chloroplasts. Which statement is true of this cell? A. It is a photosynthetic bacterium, probably a cyanobacterium. B. It possesses a cell wall that contains both NAG and NAM. C. It should be classified in the kingdom Protista. @ D. Both B and C are correct. E. None of the above: if chloroplasts are present, mitochondria cannot be. 4. During ethanol fermentation, glucose is first split into two molecules of pyruvic acid, which then undergo further transformation. Which of the following statements is accurate regarding the reactions that take place AFTER pyruvic acid has been formed? A. Pyruvic acid is converted to ethanol and carbon dioxide. @ B. 2 ATP molecules are formed. C. NAD+ is reduced to NADH. D. Pyruvic acid is converted into lactate. E. oxygen is used up as NADH is oxidized to NAD+. 5. Gram positive cell walls: A. exist within a periplasmic space between the inner and outer membranes. B. contain more peptidoglycan layers than Gram negative cell walls. @ C. are less susceptible to the action of penicillin than Gram negative cell walls. D. contain porin proteins complexed with techoic acids. E. Both A and D are correct. 6. You are observing a single celled organism through the microscope and note that it contains both mitochondria and chloroplasts. Which of the following statements is true of this cell? A. It must be a photosynthetic bacteria that is a photoheterotroph. B. It contains a peptidoglycan cell wall, and is a photoautotroph.
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This note was uploaded on 07/22/2010 for the course BIOLOGY 315 taught by Professor Bio during the Spring '10 term at SUNY Stony Brook.

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BIO 315 spring 2010 midterm1v1 - BIO 315 MICROBIOLOGY: MID...

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