Organic Chemistry III
	Professor Carl C. Wamser
	Chapter 27 Pre-Quiz	Chem 336 - Spring 2005

(must be done in WebCT before Mon., May 23, 8:30 am)

1. The amino acid with a pI closest to 7.00 is

a. Ile  
* b. His  
c. Asp  
d. Pro  
e. Arg

2. A transamination reaction creates alanine from

a. glycine  
b. glyceraldehyde  
c. phenylalanine  
* d. pyruvic acid  
e. malonic acid

3. The Strecker synthesis creates an amino acid from

a. an acid chloride  
b. a ketone  
c. an alkyl halide  
d. an ester  
* e. a nitrile

4. The tripeptide Phe-Ala-Gly would have amide bond(s) using the amino group(s) of

a. Phe and Ala  
b. Phe and Gly  
* c. Ala and Gly  
d. Phe, Ala, and Gly  
e. Phe only  
f. Ala only  
g. Gly only

5. The beta sheet is an example of

a. primary structure  
* b. secondary structure  
c. tertiary structure  
d. quaternary structure  
e. protecting groups