Biomolecules Question 112
Question: The differences in D and L forms of sugars are based on:
Options:
A) spatial arrangement of carbon atom to which the functional group is attached.
B) configuration of H and OH groups around the penultimate carbon.
C) if the plane of polarised light is rotated to left (levo), it is L form; and if shifted to right (dextro), it is D form.
D) special arrangement of H and OH groups at the last carbon atom.
Show Answer
Answer:
Correct Answer: B
Solution:
D-glucose and L-glucose differ in configuration at each chiral carbon.
D-glucose rotates the plane of polarized light to the right (clockwise) while L-glucose rotates the plane of polarized light to the right (anticlockwise).
BETA
