Given below are two statements: Statement I : In amino acids, four substituent groups occupy the four valency positions of the -carbon, which are hydrogen, carboxyl group, amino group, and a variable R group. Statement II : The change in the structure of amino acids in solutions of different pH is fundamentally due to the ionizable nature of their variable R groups. In the light of the above statements, choose the mo

Step-by-step solution

Statement I is correct. Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon, known as the -carbon. They are substituted methanes where the four valency positions are occupied by hydrogen, a carboxyl group, an amino group, and a variable R group. Statement II is incorrect. A particular property of amino acids is the ionizable nature of the - NH ₂ and - COOH groups, not the variable R groups. Because of the ionizable nature of the amino and carboxyl group