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Question

Chemistry Question on Biomolecules

Which of the following is the correct structure of L-Glucose ?

A

B

C

D

Answer

Explanation

Solution

Understanding the Structure of L-Glucose:

L-Glucose is the enantiomer of D-Glucose, which means it has the same structure as D-Glucose but with opposite configurations at each chiral center.
In L-Glucose, the -OH groups are positioned in such a way that it is a mirror image of D-Glucose.

Analyzing the Structure:

For L-Glucose, the configuration of the hydroxyl (-OH) groups should be as follows from top to bottom:

  • CHO group at the top.
  • -OH on the left for the second, fourth, and fifth carbons.
  • -OH on the right for the third carbon.
  • CH2OH group at the bottom.

Matching the Correct Structure:

Based on the given configurations, Option (1) matches the structure of L-Glucose.

Conclusion:

The correct structure of L-Glucose is represented by Option (1).