exam 1 BIO365R 2006 - Name Time of Class First Exam BIO...

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Name_______________________ Time of Class____________________ First Exam- BIO 365R Fall 2006 Semester There are 36 questions, worth a total of 100 points. There are 9 pages: Make sure you have all 9 pages. Questions 1-25 below (worth 2 pts each) are either Multiple Choice or True False. Mark your answers for questions 1-25 on the Scantron . Questions 25-36 are either short answer, require a calculation or require drawing a graph. The point values of these questions are given next to the question. GOOD LUCK! 1) The knee jerk reflex involves only neurons from the peripheral nervous systems. A) True B) False 2) Conductance = 1/Resistance. A) True B) False 3) Three compartments have initially the following ion concentrations: Ion Compartment1 Compartment2 Compartment3 K + 10 mM 10 mM 100 mM Na + 100 mM 10 mM 50 mM Cl - 110 mM 20 mM 150 mM The membrane between compartment 1 and compartment 2 is permeable for sodium and chloride (equal relative permeabilities) and the membrane between compartment 2 and 3 is permeable for potassium only. In equilibrium there is: A) No voltage between compartment 1 and 2 and positive voltage between compartment 2 and 3 B) Negative voltage between compartment 1 and 2 and positive voltage between compartment 2 and 3. C) Postive voltage between compartment 1 and 2 and no voltage between compartment 2 and 3. D) No voltage between compartment 1 and 2 and negative voltage between compartment 2 and 3. E) Negative voltage between compartment 1 and 2 and negative voltage between compartment 2 and 3. 1
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Name_______________________ Time of Class____________________
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