Key Spring 2009 - BIOLOGY 311C Brand Spring 2009...

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BIOLOGY 311C - Brand Spring 2009 NAME (printed very legibly) ________________ Key ____________________ UT-EID ________________ FINAL EXAM Before beginning, check to be sure that this exam contains 10 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 55 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 56 - 60 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 written clearly on both, and that all questions have been answered in the appropriate locations. You must turn in your exam on or before 12:00 noon. 1. The observations that the cell is the smallest unit of the living state and that every cell arose from an existing cell are expressions of: a. the central dogma. b. the cell doctrine. c. the universal genetic code. d. the law of diminishing returns. 2. The nitrogen bases of two antiparallel polynucleotide chains are held together by: a. covalent bonds. b. hydrophobic bonding. c. electrovalent bonds. d. hydrogen bonds. 3. The diameters of the smallest living cells are approximately: a. 0.1 mm. b. 100 μm. c. 500 nm. d. 20 Å. 4. According to a modern system of classification of all living organisms, Bacteria, Archea and Eukaryota are divided into three distinct groups called: a. domains. b. kingdoms. c. phyla. d. classes. 5. Which one of the following is not a model organism that is used extensively for modern cell and molecular biology research? a. E. coli (a bacterium) b. Caenorhabditis elegans (a roundworm) c. Mus musculus (a mouse) d. Spizella arborea (a bird) Spring 2009 Final Exam p. 1 BIO 311c Brand
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6. A structure within a cell that is large enough to see with some kind of microscopy, and that is not surrounded by a membrane, is called a(n): a. organelle. b. occlusion. c. plasmid. d. scaffold. 7. The nucleolus of eukaryotic cells is the site of: a. synthesis of ribosomal RNA. b. hydrolytic breakdown of proteins. c. translocation of lipids. d. fixation of carbon dioxide. 8. In eukaryotes, a growing polypeptide chain that contains a signal peptide at its amino-terminal end targets the polypeptide chain to: a. lysosomes. b.
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Key Spring 2009 - BIOLOGY 311C Brand Spring 2009...

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