At the isoionic point
A) proteins are least soluble.
B) the net ionic charge is zero.
C) repulsive forces between proteins are at a minimum.
D) the pH of the solution may vary widely from protein to protein.
E) all of the above

Question

Quizplus · Accepted Answer

At the isoionic point, proteins are least soluble due to the net ionic charge being zero, which minimizes repulsive forces between protein molecules. This point varies for different proteins, leading to a wide variation in pH levels at which it occurs for different proteins.

At the Isoionic Point