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PTECH Biochemistry QUESTION #3434
Question 1
The 'Isoelectric Point' ($pI$) of a protein is the $pH$ at which it:
  • Has a maximum positive charge
  • Has a maximum negative charge
  • Has a net charge of zero✔️
  • Is most soluble
Correct Answer Explanation
At this $pH$, the protein does not move in an electric field.