Exam 1 Spring 2008

Exam 1 Spring 2008 - BIOLOGY 311C Brand Spring 2008...

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BIOLOGY 311C - Brand Spring 2008 NAME (printed very legibly) _________________________________________ UT-EID ________________ EXAMINATION I 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 if 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 your exam on or before 9:55 a.m. 1. The chemical symbol of the un-ionized form of the smallest element, which contains only one proton per atom, is: a. He. b. H 2 . c. H. d. H + . 2. An atom or molecule that carries one or more negative charges is called a(n): a. isotope. b. isomer. c. cation. d. anion. 3. Which one of the molecular species whose chemical symbol is shown below is defined as an organic molecule? a. CH 4 b. CO 2 c. H 2 CO 3 d. CO 3 2- H O C C H H OH C H H NH 2 C C H H SH 4. Which one of the following is not a functional group of the molecule whose structural formula is shown at right? a. Aldehyde b. Carboxylic acid c. Alcohol d. Sulfhydryl 5. A typical bond strength of a covalent bond is approximately 400 kJ/mole. A typical bond strength of a hydrogen bond (in kJ/mole) is approximately: a. 40. b. 400. c. 4,000. d. 4 x 10 4 . Spring 2008 Exam 1 p. 1 BIO 311C Brand
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6. Which one of the following functional groups would not be expected to form a hydrogen bond with water? a. Sulfhydryl b. Aldehyde c. Phosphoric acid d. Amine 7. If, in a eukaryotic cell, a signal recognition particle (SRP) is bound to the end of a polypeptide chain (protein) while it is being synthesized, then the polypeptide chain is targeted to: a. the plasma membrane. b. nuclear pores.
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Exam 1 Spring 2008 - BIOLOGY 311C Brand Spring 2008...

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