Answer
Verified
384k+ views
Hint: $N{H_2} - C{H_2} - COOH$ molecule has three groups, namely an amino group, an alkyl group, and a carboxylic acid group. The amino group usually carries positive charge, while the carboxylic acid group carries negative charge. While taking this into account, we can propose the behaviour of the molecule.
Complete answer:
$N{H_2} - C{H_2} - COOH$ is Glycine. It is an amino acid. Amino acids are organic molecules which are essentially the building blocks of protein molecules. They have the general molecular formula $N{H_2} - R - COOH,$ where R is any alkyl group. They usually consist of an acidic $ - N{H_2}$ group, which is an amino group, and a basic $ - COOH$ group, which is a carboxylic acid group, bonded to the same carbon atom.
Since $N{H_2} - C{H_2} - COOH$ has both acidic and basic groups, it exhibits amphoteric properties. This means that in an acidic medium, the molecule is positively charged and behaves as a base (proton acceptor) and in the basic medium, the molecule is negatively charged and behaves as an acid (proton donor).
In solution, $N{H_2} - C{H_2} - COOH$ exists as zwitterions. Zwitterions are those ions which have both positive and negative charge in the same molecule. It does not have an aggregate charge, but includes differently charged positive and negative parts in the molecule.
Note:
At physiologic pH, amino acids are usually ionized. The pH at which amino acids have neutral charge is known as isoelectric point. At pH lower than isoelectric point, they have positive charge, while at pH higher than isoelectric point, they have negative charge.
Complete answer:
$N{H_2} - C{H_2} - COOH$ is Glycine. It is an amino acid. Amino acids are organic molecules which are essentially the building blocks of protein molecules. They have the general molecular formula $N{H_2} - R - COOH,$ where R is any alkyl group. They usually consist of an acidic $ - N{H_2}$ group, which is an amino group, and a basic $ - COOH$ group, which is a carboxylic acid group, bonded to the same carbon atom.
Since $N{H_2} - C{H_2} - COOH$ has both acidic and basic groups, it exhibits amphoteric properties. This means that in an acidic medium, the molecule is positively charged and behaves as a base (proton acceptor) and in the basic medium, the molecule is negatively charged and behaves as an acid (proton donor).
In solution, $N{H_2} - C{H_2} - COOH$ exists as zwitterions. Zwitterions are those ions which have both positive and negative charge in the same molecule. It does not have an aggregate charge, but includes differently charged positive and negative parts in the molecule.
Note:
At physiologic pH, amino acids are usually ionized. The pH at which amino acids have neutral charge is known as isoelectric point. At pH lower than isoelectric point, they have positive charge, while at pH higher than isoelectric point, they have negative charge.
Recently Updated Pages
what is the correct chronological order of the following class 10 social science CBSE
Which of the following was not the actual cause for class 10 social science CBSE
Which of the following statements is not correct A class 10 social science CBSE
Which of the following leaders was not present in the class 10 social science CBSE
Garampani Sanctuary is located at A Diphu Assam B Gangtok class 10 social science CBSE
Which one of the following places is not covered by class 10 social science CBSE
Trending doubts
Derive an expression for drift velocity of free electrons class 12 physics CBSE
Which are the Top 10 Largest Countries of the World?
Write down 5 differences between Ntype and Ptype s class 11 physics CBSE
The energy of a charged conductor is given by the expression class 12 physics CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Derive an expression for electric field intensity due class 12 physics CBSE
How do you graph the function fx 4x class 9 maths CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Derive an expression for electric potential at point class 12 physics CBSE