What is zwitterion with example?

Answer 1

A zwitterion is a compound which contains both positively and negatively charged groups in the same molecule. For example, amino acids H2N-R-COOH form zwitterions: the proton leaves the carboxylic acid group and the amine group becomes protonated, resulting in +H3N-R-COO-

Answer 2

A zwitter ion is an ion formed from a molecule that has a fuctional group that acts basic and a fuctional group that acts acidic. The molecule can shift between being an acid or a base depending on the pH of the solution that it is in. An example would be amino acids, which have an amino functional group as the base side of the molecule and a caboxylic acid as the acidic side. The caboxylic acid would lose it's hydrogen leaving it negatively charged, and the amino group can accept that hydrogen becoming positively charged.

Answer 3

A zwitterion is a compound with no overall electrical charge, but which contains separate parts which are positively and negatively charged:

(1) The carboxyl group can lose a hydrogen ion to become negatively charged.

(2) The amine group can accept a hydrogen ion to become positively charged.

Amino acids are often considered to be zwitterion because it contain both a carboxyl group (COOH) and an amino group (NH2) there is one negative (COO-) and one positive (NH3+) charge.

Answer 4

Charge of the zwitterion encourages solubility in polar solvents, such as water. Since amino acids and certain other compounds found in nature form zwitterions, it is apparent that such solubility is important. In addition, the folding of long-chain or oligomeric molecules is considerably affected by electrical charge. An area of intense ongoing research is that of zwitterion transport. Outside the field of biochemistry, research into the zwitterion is even being used in conjunction with carbon nanotube and fullerene research.

1 Glycine forms the zwitterion when dissolved in water. Water lowers the energy required to form the double ion. For amino acids in general, the energy increase associated with carrying a negative charge is lessened by being "spread out" over the two oxygen atoms (see associated image). Such spreading out is called "resonance."

Answer 5

A zwitterion is a neutral molecule that has positively and negatively charged functional groups. An example is amino acids, where the amino group is positively charged and the carboxyl group is negatively charged in the same molecule. This allows the zwitterion to be stable in a neutral pH environment.

Answer 6

A zwitterion is a compound that has both a positive and negative charge.

Answer 7

A zwittergent is another name for a zwitterionic detergent - a detergent which carries positive and negative charge.