An amino acid under certain conditions has both positive and negative charges simultaneously in the same molecule. Such a form of amino acid is called
(a) Acidic form
(b) Basic form
(c) Aromatic form
(d) Zwitterionic form
Answers
Answer:
Explanation:
In neutral solution,an amino acid molecule exist as a dipolar ion (zwitter ion) , i.e., molecule containing positive and negative ionic group. The charge on the oin changes with pH .
ANSWER
In neutral solution,an amino acid molecule exist as a dipolar ion (zwitter ion) , i.e., molecule containing positive and negative ionic group. The charge on the oin changes with pH . In an acidic solution (low pH) the amino acid picks up H
+
ions and becomes positively charged.In alkaline solution (high pH) the amino acid donates H
+
ions to the medium and becomes negatively charged. The pH at which the amino acid is electrically neutral of the molecule exists as a zwitterion is called the isoelectric pH.
So, the correct answer is 'Zwitterionic form'.
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Answer:option d
Explanation:the form of amino acid that has both positive and negative charges simultaneously is called zwitterionic form