Q.13.66
Question
What are the differences in the Fischer projections of D-glucose and D-fructose? (13.3)
Step-by-Step Solution
Verified Answer
D-Glucose and D-fructose are isomers of commonly consumed monosaccharides. The ratio of conversion of D-glucose to D-fructose by glucose isomerase (xylose isomerase) is not more than 50 %.
1Step 1: introduction
- Both monosaccharides are aldohexoses.
- The two monosaccharides differ in the configuration around the fourth carbon atom.
2Step 2: Differences in the Fischer projections of D-glucose and D-fructose
- Both D-Fructose and D-glucose are a ketohexose, D-glucose has aldehyde on C one while D-fructose has alcohol at one. D-glucose has alcohol at two while -fructose has ketone at C two
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