5. A biochemist is attempting to separate a glucose-binding protein (protein X) from other proteins in a solution. Only three other proteins (A, B, and C) are present. The proteins have the following properties: pl (isoelectric Bind to point) Mr Size glucose? protein A 7.4 75,000 yes protein B 3.8 21,900 yes protein C 7.9 22,000 no yes protein X 7.8 23,000 What type of protein separation techniques might she use to separate: (a) protein X from protein A? (b) protein X from protein B? (c) protein X from protein C?