The L or D form of a sugar is determined by its relation to:: (A) Fructose, (B) Glycogen, (C) Glyceraldehyde, (D) Glucose
Answer is C. An optical isomer can be named by the spatial configuration of its atoms.The D/L system does this by relating the molecule to glyceraldehyde.Glyceraldehyde is chiral itself, and its two isomers are labeled D and L