Key-Exam 2 - BIOLOGY 311C Brand Spring 2006 NAME(printed...

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Spring 2006 Exam 2 p. 1 BIO 311C Brand BIOLOGY 311C - Brand Spring 2006 NAME (printed very legibly) ____________ Key _____________ UT-EID __________________ EXAMINATION II 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 39 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 40 - 42 directly on this exam, in the spaces provided with the questions. Write in complete sentences when an explanation or a description is required. 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 you exam on or before 11:50 a.m. 1. If two organic molecules, each with an asymmetric carbon atom, are identical except that they are mirror images of each other, then they are called: a. geometric isomers. b. isomeric forms. c. isotopes. d. enantiomers. 2. A biological molecule is defined as a lipid if it: a. is not water soluble. b. contains at least one glyceride bond. c. is a conjugated molecule. d. carries no net electrical charge. 3. A fatty acid that contains one or more double bonds may be described as: a. a grease. b. unsaturated. c. conjugated. d. oligomeric. 4. Which one of the following is not a component of a typical phospholipid? a. Phosphodiester bond b. Polar R-group c. Sterol d. Glycerol 5. If a free amino acid is dissolved in water (pH 7), then what is the minimum number of electrical charges it is expected to carry? a. 0 b. 1 c. 2 d. 3
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Spring 2006 Exam 2 p. 2 BIO 311C Brand 6. The free amino acids that are used to construct proteins have a central carbon atom which is covalently bonded to all of the following except : a. a hydrogen atom. b. a phosphate functional group. c. an amine functional group. d. a carboxylic acid functional group. 7.
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Key-Exam 2 - BIOLOGY 311C Brand Spring 2006 NAME(printed...

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