Proteins Quiz_202

Proteins Quiz_202 - From null

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Started: Submitted: Score: Points: Points: 10 out of 10 Points: 10 out of 10 From: null <Saved by Internet Explorer 11> Date: Wed, 16 Sep 2015 09 52 41 -0500 To: CC: Subject:Proteins Quiz Proteins Quiz Attempt 2 of 2 08/30/2015 8:21 PM EDT 08/30/2015 8:26 PM EDT 90% 90 out of 100 Question 1 The amino acid valine is shown with its sidechain atoms highlighted in yellow. Do you think this amino acid is hydrophilic or hydrophobic? A. hydrophobic (non-polar) B. hydrophilic (polar) Feedback Correct! There are no oxygen atoms here, so the side chain does NOT look like water. Therefore, it probably does not interact well with water! Question 2 This amino acid is ______________. A. hydrophobic B. hydrophilic Feedback
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Points: 10 out of 10 Points: 10 out of 10 Points: 0 out of 10 Correct. The oxygens on the side chain make this a hydrophilic amino acid. Question 3 The peptide bond that forms between two amino acids is an example of a(n): A. covalent bond B. hydrogen bond C. ionic bond Feedback Correct, because there is sharing of electron between the carboxylic carbon on one amino acid and the amino nitrogen on the next amino acid.
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