D and L Designations of Monosaccharides

Question	Answer
The simplest monosaccharides are _____________ and __________. Only _________ contains a ________ center.	The simplest monosaccharides are glyceraldehyde and dihydroxyacetone. Only glyceraldehyde contains a chirality center(four diff groups attached)
Glyceraldehyde exists in two __________ forms.	enantiomeric
A monosaccharide whose ______ ________ _________ center ( the ________ carbon) has the same configuration as the D-(+)-glyceraldehyde is designated as a __________. Vice versa for the L-(-)-glyceraldehyde.	A monosaccharide whose highest numbered chirality center ( the penultimate carbon) has the same configuration as the D-(+)-glyceraldehyde is designated as a D-sugar. Vice versa for the L-(-)-glyceraldehyde.
The D and L nomenclature	Are like the (R) and (S) designations although they are not necessarily related to the optical rotations of sugars to which they are applied.

Resource summary

	Created by Danielle Thibeadeaux about 10 years ago