Exam 1A S2007-1

Exam 1A S2007-1 - NAME_ Biology 212, section 2 (Mayfield)...

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Biology 212, section 2 (Mayfield) January 29 , 2007 Examination 1, Form A This exam consists of 28 multiple choice questions, one structure question, and one essay question for a total of 30 questions (40 points). There are five pages (three sheets of paper). The test has three versions. Each version has a different color answer sheet. Make sure that your answer sheet is the correct color. Read each question carefully. If you find the wording of a question confusing, ask! Please put your name on both the test and the answer sheet, last name first; and the middle nine digits of your ISU identification number on the answer sheet. Use a pencil. When you have completed the examination, please bring your test and answer sheet to the front of the room; you may then leave. 1. Which characteristic(s) are likely to make a molecule insoluble in water? A. Ability to form covalent bonds B. An extended shape C. A large fraction of its atoms are hydrogen and carbon D. A large fraction of its atoms are nitrogen and hydrogen E. A compact shape. 2. Macromolecules are polymers of monomers. Which of the following macromolecular structures always has a primary structure consisting of a long unbranched chain of monomers? A. proteins B. polysaccharides C. nucleic acids D. phospholipids E. choices A and C are both correct 3. Macromolecules are polymers. If the monomers are sugars, what class of macromolecules are we talking about? A. proteins B. polysaccharides C. nucleic acids D. phospholipid bilayers E. lipids 4. Collagen is a body protein made up of three polypeptide chains. What term is used to describe the overall protein shape created when two or more protein subunits bind together to form a structure? A. primary structure B. secondary structure C. tertiary structure D. quaternary structure E. bonding structure 5. Which of the following terms are often used interchangeably (with the same meaning)? A. amino acid – nucleotide
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This note was uploaded on 03/27/2008 for the course BIOL 212 taught by Professor Shen during the Spring '08 term at Iowa State.

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Exam 1A S2007-1 - NAME_ Biology 212, section 2 (Mayfield)...

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