Micro_Exam_1_summer_2007-2

Micro_Exam_1_summer_2007-2 - BIO 315 MICROBIOLOGY: MID TERM...

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BIO 315 – MICROBIOLOGY: MID TERM EXAM 1 – Summer 2007 Please fill in your name and SOLAR 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 30 multiple choice questions. (1 pt. each) Answers to the “essay question section” should be turned in on the sheet of paper on which the “essay questions” are printed (Front and back). You may use this sheet and any other blank space to do any relevant work, but please make sure that everything you want us to see is on the sheet you hand in. There are 4 “essay questions” worth a total of 10 pts. Answer sheets and essay sheets will be collected when time is called at 10:50. If you finish before that time you may hand in your answer sheets and leave the room. Please keep your copy of the exam booklet. Answers and grades will be posted ASAP on Blackboard. SELECT THE BEST ANSWER!! GOOD LUCK!
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1. This type of microscopy yields the highest magnification and resolution of samples. However, living organisms cannot be visualized using this type of microscopy. Which one is it? a. Brightfield microscopy b. Scanning electron microscopy c. Flourescence microscopy d. Darkfield microscopy e. Transmission electron microscopy @ 2. The Gram Stain is a procedure used to distinguish between Gram-positive and Gram-negative bacteria. Which step in the procedure could theoretically be omitted and STILL allow differentiation? a. Counterstain @ b. Primary Stain c. Alcohol wash d. Application of mordant e. Acid wash 3. N-acetyl muramic acid should be considered as a modified: a. amino acid b. monosaccharide @ c. protein d. triglyceride e. lipid 4. You have isolated a motile, spiral shaped cell with an outer membrane and no mitochondria. This cell may contain all of the following structures/molecules EXCEPT:\ a. an axial filament b. a peptidoglycan layer c. Lipid A d. techoic acids attaching the cell wall to the plasma membrane @ e. ribosomes 5. A particular cell has the following characteristics: it is a chemoautotroph; it can undergo fermentation for long periods of time in the absence of oxygen; it has a peptidoglycan layer in its cell wall; and it contains ribosomes. Which of the following statements is true of this cell? a. It contains mitochondria
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This note was uploaded on 03/08/2010 for the course BIO 315 taught by Professor Schmidt during the Spring '08 term at SUNY Stony Brook.

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Micro_Exam_1_summer_2007-2 - BIO 315 MICROBIOLOGY: MID TERM...

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