Polar Amino Acids An amino acid is polar when the R group is an alcohol, thiol, or amide. 11. Acidic Amino Acids An amino acid is acidic when the R group is a carboxylic acid. 12. Basic Amino Acids An amino acid is basic when the R group is an amine.
Friedensburg is a census-designated place (CDP) in Schuylkill County, Pennsylvania, United States. The population was 828 at the 2000 census.
1 Germany Hill (Philadelphia), PA. 2  Wissahickon (Philadelphia), PA. 3  Wynnefield (Philadelphia), PA. 4  West Mount Airy (Philadelphia), PA.  Parkland (Philadelphia), PA.