AQA A-Level Biology - Proteins| Questions With 100% Correct Answers | Verified

Amino Acid - A monomer that will join with other amino acids to form a protein Dipeptide - Two amino acids bonded together via a peptide bond Polypeptide - Many amino acids bonded together via peptide bonds Protein - A combination of polypeptides Amine Group - -NH2, a basic group where the amino part of amino acid comes from Carboxyl Group - -COOH, an acidic group where the acid part of amino acid comes from R Group - A side group that can be comprised of different chemical groups Condensation Reaction - The reaction that allows the formation of a peptide bond Process of a Condensation Reaction - A H+ is removed from the amine group, and the OH- is removed from the carboxyl group on the other amino acid. This forms water and a dipeptide. Primary Structure - The linear amino acid sequence of the polypeptide chain Secondary Structure - The arrangement of the primary structure when considering hydrogen bonds. This forms either an alpha helix or a beta pleated sheet Alpha Helix - A helix shape that can be formed when considering a polypeptide's secondary structure