Biol200 Exam1_2012_key

Biol200 Exam1_2012_key - Biology 200, Winter 2012 Exam 1...

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Biology 200, Winter 2012 Name _________________________________ Exam 1 Version C Section ____________ TA ________________ Page 1 DO NOT OPEN THIS EXAM UNTIL INSTRUCTED TO DO SO: INSTRUCTIONS : Pages 1-2 show figures that you will need to use on some of the questions. When you begin, please rip off these pages and do not turn them in . When you begin, make sure to put your name on all answer pages (3-7). When you are finished: Turn in your exam to your TA. Please leave the room as quietly and gracefully as possible. This exam is worth 90 points. Pages 3-7 will be graded. The suggested length for for your answer to ALL short answer questions is 2 sentences or less. You do not need to use the entire limit, and some questions may be answered in a single word. Extra information, if incorrect, will lower your score.
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Biology 200, Winter 2012 Name _________________________________ Exam 1 Version C Section ____________ TA ________________ Page 2 Nonpolar Amino Acids (hydrophobic) Alanine (Ala) Leucine (Leu ) Proline (Pro) Glycine (Gly) Methionine (Met) Tryptophan (Trp) Isoleucine (Ile) Phenylalanine (Phe ) Valine (Val) Polar Amino Acids (hydrophilic) Asparagine (Asn) Glutamine (Gln) Threonine (Thr) Cysteine (Cys) Serine (Ser) Tyrosine (Tyr) Negatively Charged Amino Acids (hydrophilic) Aspartic Acid (Asp) Glutamic Acid (Glu) Positively Charged Amino Acids (hydrophilic) Arginine (Arg) Histidine (His ) Lysine (Lys)
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Biology 200, Winter 2012 Name _________________________________ Exam 1 Version C Section ____________ TA ________________ Page 3 Please sign the following agreement. By signing this, you agree to not accept or provide assistance to anyone else during this exam. Honor Code Agreement - Signature: _____________________________ Date: ______ ****************************************************************************** 1) (5 pts) Indicate the type of chemical bonds found in each of the following compounds (Methane is shown as an example): CH 4 _nonpolar covalent NaCl IONIC (POLAR) H 2 O POLAR COVALENT O 2 NONPOLAR COVALENT NH 3 POLAR COVALENT CO 2 POLAR COVALENT 2) (4 pts) Rank the following molecules according to the free energy in their bonds (high to low). H 2 0, CO 2 , CH 4 , NaCl Highest Energy __ CH 4 __ __ CO 2 ___ __ H 2 0 ___ ___ NaCl _ Lowest Energy 3) (3 pts) DNA can be denatured using heat, resulting in the two strands separating. The temperature at which this melting takes place is called the “melting temperature”.
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This note was uploaded on 03/08/2012 for the course BIOL 200 taught by Professor Jimlara/stevehauska/hannalerhoula-baker during the Spring '09 term at University of Washington.

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Biol200 Exam1_2012_key - Biology 200, Winter 2012 Exam 1...

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