Question

Which among the following is the sweetest sugar?
a. Fructose
b. Glucose
c. Galactose
d. Sucrose

Answer 1

Hint: This monosaccharide sugar is one of the three most essential blood sugars that have the 6-membered ring-shaped sugar that is the sweetest among all naturally occurring carbohydrates contained in several of our regular foods.

Complete answer:
> Option A is correct. Fructose is the sweetest of all carbohydrates that do occur naturally. The relative sweetness of fructose in the range of 1.2–1.8 times that of sucrose has been recorded. Warming fructose is responsible for the creation of the 5-membered ring type. Hence the relative sweetness decreases as the temperature increases.

> Option B is incorrect. Glucose is a commonly used sugar in our general sugars. A subcategory of carbohydrates, it is the most abundant monosaccharide. Glucose is mainly produced by plants and most algae during water and carbon dioxide photosynthesis, using energy from sunlight, where it is used to create cellulose which is the most abundant carbohydrate in the cell walls.

> Option C is incorrect. Galactose is a sugar composed of monosaccharides that is about as sweet as glucose, and about 65% as sweet as sucrose. It is an aldohexose and a glucose epimer C-4. A molecule of galactose bound with a molecule of glucose forms a molecule of lactose.

> Option D is incorrect. Sucrose is a common sugar and a disaccharide molecule that consists of two monosaccharides: glucose and fructose. Sucrose is naturally produced in plants that refine table sugar. Sucrose in solution has a perception of sweetness level of 1 and other substances are graded compared to it.

So, the correct answer is Option A.

Note: Of all the sugars given, fructose is the sweetest sugar. A calculation of the concentration of sugar shows that if sucrose had one sweetness, glucose would be 0.74 and fructose would be as high as 1.7.