PRIMARY STRUCTURE OF PROTEINS: Peptide -C=N- bonds are unable to rotate freely because of their partial double-bond character. So, the six... View Article
A few proteins contain two or more polypeptide chains linked covalently. For example, disulfide bonds link the two-polypeptide chains of insulin,... View Article
Hydroxyl and carboxyl groups present in the peptide are to be first protected as amides or esters. Terminal carboxyl group is converted into an... View Article
Every protein has a unique amino acid sequence. Identification of the amino acids present in the protein in order describes the primary structure... View Article
A peptide is a chain of amino acids. In order to form the chain, two neighbouring amino acid molecules, condense with the elimination of... View Article
All amino acids except glycine, have their α- carbon bonded to four different groups: carboxyl, amino, R-, and a hydrogen atom. Thus the α-carbon... View Article
Acid-base titration involves the gradual addition or removal of protons by the addition of a base. Amino acids have characteristic titration... View Article
ACID AND BASIC NATURE OF AMINO ACIDS- ZWITTER IONS:Since amino acids contain both amino and carboxylic groups, when they are placed in an aqueous... View Article
The formation of soil is a complex process. Before studying about the formation of soil let us first know about soil. The outer layer or the... View Article
Answer: Voltmeter which is also known as voltage meter is an instrument that measures the voltage or potential difference among two points of an... View Article
We all know that most metals are good conductors of heat, electricity and are solid at room temperature. Mercury is the only metal that is in... View Article
Answer: Latitudes and longitudes are commonly referred to as geographical coordinates. They provide a systematic network of lines upon which the... View Article
Smelting is a metallurgy technique to extract base metals from their ores with the help of heat and a chemical reducing agent. The process of... View Article
Answer: The refraction of light by the Earth's atmosphere is known as atmospheric refraction. Atmospheric refraction is caused by the bending of... View Article
The current induced in a conducting loop that is exposed to a changing magnetic field is known as induced current. This change may be produced... View Article
The three basic electrical quantities are: Voltage Electric Current Resistance Voltage is the pressure exerted from an electric circuit's power... View Article
The electrical resistivity of a material is the measure of how strongly the material opposes the flow of current. The SI unit of electrical... View Article
All amino acids have a carboxyl group and an amino group bonded to the same carbon atom (the α carbon). But, they differ from each other in... View Article
Based on R-groups: Amino acids are classified based on the nature and polarity of their R groups. R can be aliphatic or aromatic. Their polarity... View Article
