Key_Exam_2_09 - BIOLOGY 311C Brand Spring 2009 NAME(printed very legibly_KEY UT-EID EXAMINATION 2 Before beginning check to be sure that this exam

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Spring 2009 Exam 2 Key p. 1 BIO 311c Brand BIOLOGY 311C - Brand Spring 2009 NAME (printed very legibly) ____________________ KEY _________________ UT-EID ________________ EXAMINATION 2 Before beginning, check to be sure that this exam contains 7 pages (including front and back) numbered consecutively, and that you have been provided with a clean Answer Sheet. Then immediately print your name and UT-EID legibly at the top of this page. Also print and bubble in your name and your UT-EID (not your social security number) on the front of the Answer Sheet in the spaces provided. The first 37 questions are “multiple choice”, with only one correct answer. Mark the letter corresponding to the correct answer to each of these questions in the appropriate location on the Answer Sheet, using a No. 2 pencil. Write answers to Questions 38 – 41 directly on this exam, in the spaces provided with the questions. Print neatly if your handwriting is likely to be difficult to read. Turn in both this exam and the Answer Sheet after checking to be sure that your name is clearly written in both places and all questions have been answered in the appropriate locations. You must turn in your exam on or before 9:55 a.m. 1. Which one of the following functional groups would be expected to carry a net positive charge in the cytoplasmic matrix of a cell? a. An alcohol b. A phosphate c. An aldehyde d. An amine 2. In cell biology the appreviation “ P i ” stands for: a. a denatured protein. b. a proton bound to an inorganic atom. c. inorganic phosphate. d. a phospholipid. 3. A cell compartment with a H 3 O + concentration of 1 X 10 -9 : a. has a pH of 5. b. is alkaline. c. would be buffered by carboxylic acid functional groups. d. would have a higher [H 3 O + ] than [OH - ]. 4. Which one of the following functional groups would be capable of forming an electrovalent bond with an amine functional group a pH 7? a. Alcohol b. Ketone c. Phosphate d. Methyl 5. Which one of the following ions occurs at lowest concentration in the cytoplasmic matrix of living cells? a. Phosphate b. K + c. Mg 2+ d. Na +
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Spring 2009 Exam 2 Key p. 2 BIO 311c Brand 6. The organic content of living cells is typically approximately: a. 1% of the dry weight. b.
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This note was uploaded on 04/30/2011 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas at Austin.

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Key_Exam_2_09 - BIOLOGY 311C Brand Spring 2009 NAME(printed very legibly_KEY UT-EID EXAMINATION 2 Before beginning check to be sure that this exam

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