BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Although glucose, galactose, and fructose all have the same chemical formula (C6H12O6), they differ structurally and stereochemically. This makes them different molecules despite sharing the same atoms in the same proportions, and they are all isomers of one another, or isomeric monosaccharides.

Detailed explanation-2: -Fructose is a structural isomer of glucose and galactose, meaning that its atoms are actually bonded together in a different order. Glucose and galactose are stereoisomers (have atoms bonded together in the same order, but differently arranged in space). They differ in their stereochemistry at carbon 4.

Detailed explanation-3: -Galactose is a monosaccharide and has the same chemical formula as glucose, i.e., C6H12O6. It is similar to glucose in its structure, differing only in the position of one hydroxyl group.

Detailed explanation-4: -Answer and Explanation: Glucose, fructose and galactose are isomers because all these three monosaccharides have the same chemical formula C6H12O6. However, they do not have the same structure. For example, both glucose and galactose are aldohexoses i.e, they are 6C compounds with an aldehyde as the functional group.

Detailed explanation-5: -Glucose and fructose are functional isomers of each other because they have same molecular formula that is C6H12O6 But different functional group in their chemical formula. Glucose has aldehyde group while fructose has ketone as functional group. They differ in the nature of the functional group.