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.
Saxonburg, PA. Sponsored Topics. Saxonburg is a borough in Butler County, Pennsylvania, United States. The population was 1,629 as of the 2000 census. Saxonburg was founded in 1832 by John A. Roebling, who is known for the design of the Brooklyn Bridge in New York, and for innovation in producing wire rope.