Home › MCQs › PTECH Biochemistry › Question #3386
Back to Questions
PTECH Biochemistry QUESTION #3386
Question 1
'Zwitterion' is a state where an amino acid has:
  • Only a positive charge
  • Only a negative charge
  • Both positive and negative charges (neutral net charge)✔️
  • No charges at all
Correct Answer Explanation
This occurs at the isoelectric point ($pI$).