A)
B)
C)
D)
Correct Answer: A
Solution :
Isoelectric point for neutral amino acids ranges from pH 5.5 to 6.3. Acidic amino acids have isoelectric point around 3 while basic amino acids have ranges from pH = 7.6 to 10.8. At isoelectric point amino acid exist as Zwitter ion. At low pH it exists as cation and at high pH it is exists as anion. Hence, alanine \[\left( pH = 3 \right)\] will exists as cation.You need to login to perform this action.
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