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.
Bitburg (German pronunciation: [ËbÉªtbÊÊk]; French: Bitbourg; Luxembourgish: BÃ©ibreg) is a city in Germany, in the state of Rhineland-Palatinate approximately 25 km (16 mi.) northwest of Trier and 50 km (31 mi.) northeast of Luxembourg city. The American Spangdahlem Air Base is nearby.