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CHEMISTRY 1152
EXAM 3A
Fall, 2014
Kirberger
NAME______________________________
All notes, books, etc., must be placed out of sight. Please read each of the problems carefully. If
something is not clear, please ask.
The exam consists of a total of 108 points. Make sure your exam is complete.
Please record all of your answers in the correct spaces on your scantron sheet using a number 2
pencil. Make sure that your scantron is properly labelled with your name, test number, and test
version (A or B).
Please note that you may not leave the room for any reason once you have started the exam. If you
have to leave early, you must submit your exam before you leave. You will not be allowed to return
to finish the exam once it has been submitted. Good Luck!!!
Chemistry 1152
Exam 3A
Name ___________________________ 2
1. (3 points) Which of the following amines can form hydrogen bonds with water?
a. primary and secondary
b. just tertiary
c. all three (primary, secondary and tertiary)
d. none of the aminos
2. (3 points) Some amine drugs are administered in the form of salts in order to
a. make them form into pills more easily
b. make them taste better
c. make them more basic
d. make them more soluble in body fluids
3. (3 points) Which of the following compounds is most likely to behave like adrenaline?
a.
b.
c.
d.
4. (3 points) Fatty acids usually have ____.
a. an odd number of carbon atoms
b. an even number of carbon atoms
c. an odd number of oxygen atoms
d. an odd number of oxygen atoms and an odd number of carbon atoms
Chemistry 1152
Exam 3A
Name ___________________________ 3
5. (3 points) Phosphoglycerides differ from glycerides in that one of the hydroxyl groups of glycerol is esterified with
a. phosphoric acid
b. Phosphorus
c. Choline
d. Serine
6. (3 points) Which of the following hormones is an anabolic steroid?
a. Estrogen
b. Testosterone
c. Progesterone
d. Estradiol
7. (3 points) Lipid oils are usually obtained from
a. plant sources
b. animal sources
c. both plant and animal sources
d. neither plant nor animal sources
8. (3 points) One feature of the fluid mosaic model of membrane structure is called the
a. Microfilament
b. pleated sheet
c. hydrophilic sheet
d. lipid bilayer
9. (3 points) Which of the following are male sex hormones?
a. Androgens
b. Estrogens
c. Progesterones
d. Estrones
10. (3 points) A functional group present in fats is a(n)
a. alcohol
b. Ester
c. carboxylic acid
d. aldehyde
11. (3 points) The main function of bile salts is to
a. stimulate the absorption of minerals through the intestinal wall
b. provide a pathway for lowering cholesterol levels
c. emulsify lipids in the digestive tract
d. serve as hormonal agents in the digestive process
12. (3 points) A β (beta) sheet structure is an example of ____ protein structure.
a. primary
b. secondary
c. tertiary
d. quaternary
Chemistry 1152
Exam 3A
Name ___________________________ 4
13. (3 points) A side chain (R group) of an amino acid containing CH2OH would be classified as
a. Acidic
b. Basic
c. neutral and nonpolar
d. neutral and polar
14. (3 points) The correct 3 letter code for the amino acid isoleucine would be:
a. Iso
b. Isl
c. Ile
d. None of the above
15. (3 points) If the following compound were completely hydrolyzed, how many amino acids could be produced?
a.
b.
3
4
c.
d.
5
6
16. (3 points) The association of several protein chains into a larger structure as in the case of hemoglobin is an example of
____ structure.
a. primary
b. secondary
c. tertiary
d. quaternary
17. (3 points) In proteins, tertiary structure may be stabilized by the formation of ____________ between 2 Cys residues.
a. Hydrogen bonds
b. Ionic bonds
c. Disulfide bonds
d. Hydrophobic interactions
18. (3 points) Which of the following is a function of proteins?
a. catalytic
b. protective
c. storage
d. all of these
19. (3 points) In proteins, tertiary structure may be stabilized by the formation of a salt bridge between residues ____ and
Chemistry 1152
Exam 3A
Name ___________________________ 5
_____.
a. Asp and Lys
b. Glu and Ile
c. Ser and Tyr
d. Phe and Asn
20. (3 points) Proteins tend to fold so that the ________ residues are buried in the interior of the protein, while the
_________ and __________ residues are found on the surface.
a. acidic, small, neutral
b. non-polar, hydrophobic, polar charged
c. polar neutral, polar charged, zwitterions
d. non-polar, polar neutral, polar charged
21. (3 points) The protein responsible for the mechanical strength of skin in mammals is?
a. collagen
b. keratin
c. hemoglobin
d. myosin
22. (3 points) Glycoproteins are a combination of protein and
a. Lipids
b. Carbohydrates
c. nucleic acids
d. Steroids
23. (3 points) The sequence of amino acids in a protein is called the ____ structure.
a. primary
b. secondary
c. tertiary
d. quaternary
24. (3 points) Identify the structure corresponding to N,2-dimethylaniline:
a.
b.
NH
NH
c.
NH
d. None of these
25. (3 points) Identify the structure corresponding to N-ethyl-3-methylbutan-1-amine:
Chemistry 1152
Exam 3A
a.
Name ___________________________ 6
c.
NH
NH
b.
d. None of these
NH
26. (3 points) Identify the structure corresponding to 4-chloro-3-methyl-N-propylbutanamide
a.
NH
Cl
c.
NH
O
NH
b.
O
Cl
d. None of these
O
27. (3 points) Provide the correct name of the following compound:
O
NH
Br
a.
b.
c.
d.
4-bromo-3-methyl-N-ethylpentanamide
2-bromo-3-methyl-N-propylpentanamide
2-bromo-3-methyl-1-oxo-propanamide
None of the above
28. (3 points) Provide the correct name of the following compound:
NH2
a.
b.
c.
d.
3-phenylheptan-2-amine
1-pentyl-1-propylaniline
1-methyl-2-phenylhexanamine
None of the above
29. (3 points) Provide the correct name of the following compound:
Chemistry 1152
Br
a.
b.
c.
d.
Exam 3A
Name ___________________________ 7
NH2
3-bromopentan-2-amine
2-bromopentan-4-amine
4-bromopentanamine
None of the above
30. (3 points) Provide the correct name of the following compound:
Br
N
a.
b.
c.
d.
N-bromo-N-methyl-4-ethylaniline
N-bromo-(p-propylphenyl)methanamine
N-bromo-4-ethyl-N-methylaniline
None of the above
31. (3 points) Provide the correct name of the following compound:
O
a.
b.
c.
d.
NH
N-butylpropanamide
N-propylbutanamide
3-oxo-4-nitrooctanamide
None of the above
32. (3 points) The name of the amide product that would result from the following reaction is N-ethylethanamide.
O
H3C
a.
b.
c.
d.
O
O
CH3
+
CH3
H2N
True
False
No reaction occurs
Answering this question is a violation of my constitutional rights
33. (3 points) The major product that would result from the following reaction is:
Chemistry 1152
Exam 3A
Name ___________________________ 8
O
H3C
+
NH2
a.
HO H
+
HCl
Heat
c.
O
O
O
+
-
NH3
b.
d. None of these
O
OH
34. (3 points) The major product that would result from the following reaction is:
O
H3C
a.
O
O
CH3
H3C
+
CH3
No Rxn
N
H3C
O
+
N
b.
O
N
c.
No reaction occurs
d.
None of the above
35. (3 points) The name of the amine that would appear in following reaction is:
O
O
Cl
a.
b.
c.
d.
+
amine
Propanamine
N-methylethanamine
N,N-dimethylethanamine
No reaction occurs
N
+
HCl
Chemistry 1152
Exam 3A
Name ___________________________ 9
36. (3 points) Identify the final products that would result from the following reaction:
O
H3C
NH
a.
O
-
+
+
O
OH
d.
Na OH
+
H3C NH2
O
OH
c.
+
O Na
H3C
b.
CH3
None of the above
H3C NH2
Heat