What is the charge on lysine, a basic amino acid, at physiological pH?
A) "+2"
B) "+1"
C) "0"
D) "-1"
E) "-2"

Name: What is the charge on lysine, a basic amino acid, at physiological pH? A) "+2" B) "+1" C) "0" D) "-1" E) "-2"
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Question

Quizplus · Accepted Answer

At physiological pH (around 7.4), lysine has a pKa of approximately 10.8. Therefore, at this pH, lysine will be predominantly in its basic form with a positive charge, making the answer B "+1".

What Is the Charge on Lysine, a Basic Amino Acid