Complete Table 4.2 to state the polymerisation type and draw the structure of the monomer for each polymer, X, Y and Z.
State what is meant by the isoelectric point of an amino acid.
A mixture containing the three amino acids glycine (gly), lysine (lys) and glutamic acid (glu) is examined in a buffer solution of pH 6.0. Draw and label three spots on Fig. 4.1 to show the predicted position of each of these amino acids, gly, lys and glu, after electrophoresis.
Electrophoresis is repeated using a buffer solution of pH 11. Predict how the position of glycine will change, if at all, after electrophoresis.
Electrophoresis can be used to separate amino acids and identify them. Table 4.3 presents data for the three amino acids glycine, lysine and glutamic acid.