At the isoelectric point, the neutral nature of the molecule makes a protein have:
A) Minimum solubility
B) Maximum solubility
C) No pH
D) The ability to form very stable emulsions
E) A very strong attraction for oil.

Question

Quizplus · Accepted Answer

At the isoelectric point, a protein carries no net electric charge, leading to minimal repulsion between molecules. This condition results in decreased solubility because the protein molecules tend to aggregate rather than dissolve in water.

At the Isoelectric Point, the Neutral Nature of the Molecule