Organic Chemistry 354 Quiz - December 9, 1999
Dr. Sundin
- 1. Many organic compounds found in living systems are complex molecules
which can be characterized, in part, by simply listing the products of the
complete hydrolysis of the complex molecule. "Characterize" the following
groups of naturally occurring molecules by giving the class name(s) (or
general structure if you have forgotten the name) of the products of
complete hydrolysis. In the event that two (or more) of the following are so
characterized identically (same names of hydrolysis products), expand on your
answer sufficiently so that one can clearly understand the distinct difference(s)
between these complex molecules. Also, give the name of the functional group
which bonds together the components of these complex molecules.
- a. wax
- b. fat
- c. oil (as in vegetable oil, not petroleum)
Answer
- 2. Draw structures of three different forces (attractions) responsible
for maintaining the conformation of an enzyme.
Answer
- 3. Enzymes catalyze reactions in living organisms. Various portions of
the enzyme (either a single amino acid or groups of amino acids) play critical
roles (functions) in this catalytic process. For enzymes in general, list
three different roles (roles are defined broadly) that portions of the enzyme
might do as the enzyme performs its overall function.
Answer
- 4. a. Which has a higher saponification number, glyceryl tristearate or
glyceryl trilinoleate? (Linoleic acid is a straight chain acid with formula
C18H32O2.)
Answer
- b. Which has a higher iodine number, glyceryl tristearate or glyceryl
trilinoleate?
Answer
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