OnlineCBT
Biology · BIOMOLECULES
हिन्दीGiven below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In solutions of different pH, the electric charge and structure of an amino acid change dynamically. Reason (R): Amino acids possess ionizable functional groups, namely the amino (-NH2) and carboxyl (-COOH) groups. In the light of the above statements, choose the correct answer from the options given below:
Correct answer · Option 1
Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation
A particular property of amino acids is the ionizable nature of -NH2 and -COOH groups. Hence, in solutions of different pH, the structure and charge of amino acids change, yielding the zwitterionic form at its isoelectric point.
