How glucose is converted into fructose and vice versa?
Answers
The isomerization of glucose to fructose is part of the glycolysis cycle that converts glucose to pyruvate. The way this is done is to isomerize the aldehyde (hemiacetal) glucose to the ketone (as a hemiacetal) fructose,and make another phosphate ester. The isomerization takes advantage of the ease of breakage of a C-H bond which involves a carbon next to a carbonyl carbon.
Answer:
A monosaccharide, glucose may be found in carbohydrates like starch and table sugar. It is represented as a ring with six members in it. Glucose possesses an aldehyde (-CHO ) as the functional group. A monosaccharide called fructose contains ketone as the functional group.
Explanation:
The polyol pathway, a sequence of chemical processes, is one method that glucose is changed into fructose.
The researchers reported that these processes, which change glucose into sorbitol, a different sugar, and subsequently turn sorbitol into fructose, take place in tissues all across the body, including the brain.
Glucose first converts into sorbitol by the use of the enzyme aldolase reductase.
Sorbitol gets converted into fructose by the use of an enzyme sorbitol dehydrogenase.
The reaction is as follows below:
CHO-CHOH-CHOH-CHOH-CHOH-CH₂OH → CH₂OH-CHOH-CHOH-CHOH-CHOH-CH₂OH → CH₂OH-C(=O)-CHOH-CHOH-CHOH-CH₂OH
In another way,
Glucose → Sorbitol → Fructose
Hence, glucose is converted into fructose via sorbitol.
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