Question
Amino sugar is formed from ‑
| A. | Glucose-1-phosphate |
| B. |
Glucose-6-phosphate |
| C. |
Fructose-1-phosphate |
| D. |
Fructose-6-phosphate |
Show Answer
|
Correct Answer � D Explanation |
 |
Ans. is ‘d’ i.e., Fructose-6-phosphate
Amino sugars are derivatives of monosaccharides in which an amino group replaces the -OH residue on carbon-2 of hexose, such as glucose, galactose, and mannose, The corresponding compounds are glucosamine, galactosamine, and mannosamine, respectively.
The amino acid group is usually acetylated, e.g. N-acetylglucosamine or N-acetyl galactosamine.
The amino sugars are required for the synthesis of glycolipids, glycoproteins, and proteoglycans.
They are synthesized from fructose-6-phosphate.