The average estimated cash rent was $202 per acre on top quality land, $161 per acre on average quality land, and $124 per acre on poor quality land. This was an increase in rental rates of 2.0% for top quality land, 1.9% for average quality land, and 2.5% for poor quality land.
R-Group. In solution it is the nature of the amino acid R-groups that dictate structure-function relationships of peptides and proteins.
An amino acid is constituted by the amine group, the carboxylic acid group, and the side chain (AKA Remainder group).It's the chemistry of the side chain that makes an amino acid unique from the other amino acids.n amino acid is constituted by the amine group, the carboxylic acid group, and the side chain (AKA Remainder group).