NEET BIOLOGY

Detailed explanation-1: -So, the correct answer is ‘Zwitterionic form’.

Detailed explanation-2: -A zwitterion is a functional group molecule in which at least one has a positive electrical charge and one a negative electrical charge. The whole molecule’s net charge is negative. The best-known examples of Zwitterions are amino acids. They have a group of amines (basic) and a group of carboxyls (acidic).

Detailed explanation-3: -Amino acids as Zwitterions There is an internal transfer of a hydrogen ion from the-COOH group to the-NH2 group to leave an ion with both a negative charge and a positive charge. This is called a zwitterion. This is the form that amino acids exist in even in the solid state.

Detailed explanation-4: -Polar molecules are those that possess regions of positive and negative charge. Water is an example of a polar material. The type of bonds it has, when coupled with its shape, gives one end of the molecule a slight positive charge (the hydrogen end) and the other a slight negative charge (the oxygen end).

Detailed explanation-5: -They contain positive and negative charges, but the net charge on the molecule is zero. More than 300 amino acids are listed in the Practical Handbook of Biochemistry and Molecular Biology, but only the twenty amino acids in the table below are used to synthesize proteins.