MIC 140 mt 2

MIC 140 mt 2 - Name Student ID Mic 140 Bacterial Physiology...

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Name ________________________ Student ID #_________________________ Mic 140 Bacterial Physiology Test 2: T RANSPORT , G ROWTH , T RANSCRIPTION AND R EGULATION , C ELL D IVISION AND REPLICATION , AND PTS Monday, November 17 th , 10:00 a. m. Before you begin working on your exam, take a moment to review these excerpts from the UC Davis Code of Academic Conduct: All members of the academic community are responsible for the academic integrity of the Davis campus Examples of academic misconduct include: receiving or providing unauthorized assistance on examinations using unauthorized materials during an examination … altering an exam and submitting it for re-grading … using false excuses to obtain extensions of time The ultimate success of a code of academic conduct depends largely on the degree to which it is willingly supported by students themselves. Instructions Be certain to mark your Scantron with: (1) your name (2) your student ID number; (3) the Test Form (this is Test Form B ). The test consists of 27 questions on 9 pages (including this cover page and graph paper on the last page). I intend for each question to be clear and unambiguous; read the questions thoroughly. If you do not understand a question, P LEASE A SK ! When finished, turn in your Scantron and Test. E ACH QUESTION HAS ONLY ONE CORRECT ANSWER 1
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Name ________________________ Student ID #_________________________ Given the following equations: ln(N 2 /N 1 )=k(t 2 -t 1 ); N is the number of cells Log 10 N 2 -log 10 N 1 =k(t 2 -t 1 )/2.303; N is the number of cells k=ln2/g B f -B o =Y(S o -S); S is the limiting substrate concentration and B is the cell concentration Part I Multiple Choice (3 pts each; 45 pts total ) 1. A group translocation system (i.e. the PTS) differs from a membrane channel for diffusion of a solute in that: a. the solute is modified during the final step in movement through the membrane. b. the solute can never be concentrated higher in the cell than outside of the cell. c. the solute may be modified after translocation through the membrane when soluble in the cytoplasm. . d. a and c. e. b and c. 2. In E. coli , the role of the min locus, minCDE, is to a. control DNA replication, such that origins only become active once during growth, b. control the process of septum formation, by regulating the timing of the fts genes c. control the solubility of FtsZ and FtsA, i.e. keeping these proteins cytosolic, such that they only form the septal ring once DNA replication has completed. d. control the site of septum formation, by preventing formation at the poles e. integrate information about DNA replication to the partitioning of the cytoplasm. 3.
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This note was uploaded on 12/13/2009 for the course MIC 140 taught by Professor Meeks,singer during the Spring '09 term at UC Davis.

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MIC 140 mt 2 - Name Student ID Mic 140 Bacterial Physiology...

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