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Monosaccharides are assigned D- or L con...

Monosaccharides are assigned `D-` or `L` configuration depending upon whether its standard. Fischer projection formula has a right or left orientation respectively of the hydroxyl group at the

A

anomeric carbon

B

carbon 2

C

topmost asymmetric carbon atom

D

bottommost asymmetric carbon atom

Text Solution

Verified by Experts

The correct Answer is:
D
All the naturally occurring monosaccharides belong to the D-Series because in the Fischer projection, the `OH` group at their respective penultimate carbon atom (or the last chiral carbon atom) is oriented towards right as in `D - (+) -` glyceraldehyde.
Synthetic sugars may have either `D -` or `L-` series. In `L-` series, the `OH` group on the penultimate carbon atom (or the last chiral carbon atom) is oriented toward left as in `L - (-) -` glyceraldehyde.
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