(A) At the isoelectric point $(pH = pI)$,an amino acid exists as a zwitterion,which carries both a positive and a negative charge,resulting in a net c

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

(A) At the isoelectric point $(pH = pI)$,an amino acid exists as a zwitterion,which carries both a positive and a negative charge,resulting in a net charge of zero. Because the molecule is electrically neutral,it does not migrate towards either the cathode or the anode when an electric field is applied. Therefore,the Reason correctly explains the Assertion.

Class 12 Chemistry Biomolecules Amino Acids and Proteins

Difficult

Assertion : At isoelectric point,the amino acid does not migrate under the influence of an electric field.
Reason : At isoelectric point,amino acid exists as a zwitterion.

AIIMS 2012 All AIIMS

AIIMS 2013 All AIIMS

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.