Biomolecules Question 190

Question: Natural glucose is termed D-glucose because:

Options:

A) $ -OH $ on the second carbon is on the right side in Fischer projection

B) $ -OH $ on the sixth carbon is on the right side in Fischer projection.

C) $ -OH $ on the fifth carbon is on the right side in Fischer projection.

D) It is dextrorotatory.

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Answer:

Correct Answer: C

Solution:

[c] Fischer gave the prefix “D” to compounds whose bottom chiral has its OH to the right. So natural glucose is called D-glucose or dextrose. Structure of D-Glucose: