Bi150 2011 Midterm

Bi150 2011 Midterm - BI/CNS 150 MIDTERM EXAMINATION 201 You...

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BI/CNS 150 MIDTERM EXAMINATION, 20 1 You may read only this page before beginning the exam. This examination contributes 30 percent of your final course grade . There are five questions in the exam ; ANSWER FOUR . The exam will be graded out of 3 nd 0 possible points, 7.5 points for each of the four quesrtion s you answer . Please indicate clearly in your answers, which questions you answered. This examination covers lectures and reading material through Mon day, October 2 4 , 20 10 . Each question has the statement, "end of Question n". Please make sure you have all the pages before you start. Three and one-half hours are permitted for completion of the exam. Use the first half hour to read all of the questions calmly and to choose which four to answer. Use the next three hours to answer the four questions. If time expires, you may draw a line across the page, complete the exam, and indicate the amount of extra time you used. Credit may be given for answers completed in this manner. This will aid us in assessing the appropriateness of the time limit. You may refer to lecture notes, this year's problem sets, and your textbook to complete this exam. You may also use a calculator or computer, if desired. You may not collaborate or discuss questions or answers with anyone else before the exam due date. You may not use the Internet while taking the exam. If you feel that you need to make any further assumptions about the systems described in any of the problems, feel free to write your assumption by your answer and the reason that you needed to make that assumption; however, no further information should be necessary to answer the problems correctly. You must answer each question on a separate sheet of paper and write your name and the page number on each sheet of paper used . This allows us to sort the questions for grading. Fill out this cover sheet and staple it to the front of your exam. Staple another cover sheet to the back of your exam. Completed exams are due by 4:30 PM on Tue sday, November 1 . You may hand in your answers to any TA, or place them in the Bi 150 mailbox on the 3 rd floor of Kerckhoff (In front of room 32 6 ). Late exams will be penalized. Corrected exams will be returned ASAP . NAME: _________________________________________________________________ Section: ________________________________________________________________ Mail Code: ______________________________________________________________ TA Name: ______________________________________________________________ Date and Time turned in: ___________________________________________________ Number of Pages: ________________________________________________________
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Question 1: Membrane Potential, Action Potentials (7.5 points) A) Membrane potential (5 points, as apportioned below) : You are interested in studying the role of inhibition in cellular signaling. In order to understand the role of chloride flux, you decide to investigate the role of various chloride concentrations. Ion
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Bi150 2011 Midterm - BI/CNS 150 MIDTERM EXAMINATION 201 You...

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