BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Fructose is a ketose sugar because it has a ketone group (C=O) in its structure. It is also the sweetest sugar. Glucose and galactose are aldose sugars since they have an aldehyde group in their structures (-CHO).

Detailed explanation-2: -The most common hexoses are glucose, galactose, mannose, and fructose. The first three are aldoses, whereas fructose is a ketose.

Detailed explanation-3: -Fructose is the most common ketone sugar. Unlike aldehyde sugars, fructose has a carbony (ketone) on carbon #2. It is and isomer of glucose and produced from glucose in an isomerization reaction. Fructose is most commonly found attached to glucose to make the disaccharide sucrose (common table sugar).

Detailed explanation-4: -Fructose. This sugar is a ketohexose, also called levulose because it is strongly levorotatory, with a specific polarized light rotation of −92.4°. It is present as a free compound in ripe fruits, plant tissues, and in honey. When fructose is bound to glucose, it forms sucrose or sugar cane.