What is the relationship between D-glucose and D-fructose?

Hint: We have to know that in sugar, the D or L assignment alludes to the design of the chiral carbon farthest from the aldehyde or keto bunch. This is $C - 5$ in glucose. In a Fischer projection, the most noteworthy numbered chiral carbon has the OH bunch highlighting the right. D-and L-sugars are identical representations of each other.

Complete step by step answer:
As we know that for glucose,
It is a monosaccharide. It is found in all significant carbs like starch, table sugar and so on. It is otherwise called glucose or grape sugar. It is a six-membered ring. It shapes a pyranose ring structure. It is aldo-hexose. It is the essential and favored fuel wellspring of the body. Starch contains glucose.
For fructose,
It is a monosaccharide. It is found in vegetables and natural products. The glycemic record is lower in fructose when contrasted with glucose. The limiting of fructose to cell protein is multiple times quicker than glucose. Fructose is likewise called organic product sugar or D-fructose. Its useful gathering is the ketone. It is processed for the most part in the liver. It isn't found in starch.

Note: We have to know that significant sugars needed for the body are glucose, fructose, and sucrose. Glucose and fructose are basic sugars. Basic starches are ordered into two sorts. They are monosaccharides and disaccharides. Monosaccharides are made of one sugar unit and are the most essential type of sugar. Illustration of monosaccharide is glucose, and fructose.