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.
Sponsored Topics. Rimersburg is a borough in Clarion County, Pennsylvania, United States. The population was 1,051 at the 2000 census. Rimersburg is located at 41Â°02â²30â³N 79Â°30â²09â³W / 41.041643Â°N 79.502583Â°W / 41.041643; -79.502583.