Asked by Catty Thobakgale on Sep 26, 2024
Verified
Which of the following descriptions apply to both dihydroxyacetone and D-fructofuranose?
I. They are both ketoses.
II. They are both aldoses.
III. They are enatiomers of each other.
IV. They are diastereomers of each other.
V. They are epimers of each other.
A) I
B) II
C) I and III
D) II and IV
E) II, IV and V
Dihydroxyacetone
A simple saccharide (C3H6O3) used in cosmetic products, particularly in sunless tanning products, as it can cause skin darkening through reaction with the skin proteins.
D-Fructofuranose
A monosaccharide sugar, a structural form of fructose with a five-membered ring structure.
Ketoses
A type of monosaccharide (simple sugar) that has its carbonyl group (C=O) located at an internal carbon atom, making it a ketone.
- Comprehend the categorization and recognition of monosaccharides according to their structural characteristics.
Verified Answer
KM
Kunal Mehrotra1 day ago
Final Answer :
A
Explanation :
Dihydroxyacetone is a ketose because it contains a ketone group, and D-fructofuranose is also considered a ketose in its furanose form due to the ketone group in its open-chain form. Neither are aldoses, enantiomers, diastereomers, nor epimers of each other.
Learning Objectives
- Comprehend the categorization and recognition of monosaccharides according to their structural characteristics.