NEET BIOLOGY

Detailed explanation-1: -Disaccharides (di-= “two”) form when two monosaccharides join together via a dehydration reaction, also known as a condensation reaction or dehydration synthesis.

Detailed explanation-2: -Monosaccharides are converted into disaccharides in the cell by condensation reactions. Further condensation reactions result in the formation of polysaccharides.

Detailed explanation-3: -Dehydration synthesis involves the formation of new chemical bonds between two molecules which leads to the formation of new compounds. A reaction occurs with the loss of water molecules at each step. The loss of water molecules can occur due to reactions between two functional groups like –OH, -NH2 or –COOH.

Detailed explanation-4: -Polysaccaride Synthesis One modern method for the synthesis of polysaccharides is called the glycal assembly method. A glycal is a sugar which has been dehydrated to form a double bond. Glycals are typically prepared from the corresponding monosaccharide.

Detailed explanation-5: -In a dehydration reaction, the H is removed from a carbon, but in a condensation reaction, the H is removed from an oxygen or a nitrogen. Unlike a dehydration reaction, in a condensation reaction, the H and OH come from different molecules.