BIOL/CHEM 3361
Name__________________________
Spring 2011
EXAM I
FORM A
Place your name at the top of this page of the exam.
On the F-1712 Scantron form, use a no. 2 pencil to
enter your test form designation, i.e., A or B.
Also print and encode your name and your UTD ID (starting in
the first column on the left and leaving the last spaces blank). Leave phone number, code and subject score
sections blank.
Select the best answer for the following multiple-choice questions and enter the corresponding letter on the
Scantron sheet. You may use these test pages to make notes and work problems.
You may use a non-graphing calculator or a graphing calculator you have cleared of all stored data.
When finished, turn in this exam along with your Scantron sheet.
1. Which of the following amino acids would be the most conservative replacement for a phe residue in a
protein, and thus least likely to change the protein’s structure and activity?
a. glu
b. his
c. arg
d. gly
e. tyr
2. Which of the following serves as the blood and interstitial fluid buffer?
3. The energy of an Individual H-bond is about
4. Which of the following amino acid side chains is not amphipathic (aka amphiphilic)
5. Which of the following amino acids has a side chain that can form hydrogen bonds?
a. serine
b. glycine
c. isoleucine
d. valine
e. alanine
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6. Which of the following amino acids has a side chain that can participate in charge-charge interactions?
7. When non-polar molecules are dissolved in water, which of the following is true?
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- Spring '11
- Marsh
- Chemistry
-
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