Biomolecules Question 80

Question: Sucrose is made up of glucose and fructose, which are reducing sugars; but sucrose is a non- reducing sugar, because the linkage involves:

Options:

A) 1st carbon of glucose and 2nd carbon of fructose

B) 2nd carbon of glucose and 1st carbon of fructose

C) 1st carbon of glucose and 4th carbon of fructose

D) 4th carbon of glucose and 1st carbon of fructose

Show Answer

Answer:

Correct Answer: A

Solution:

[a] As the 1st carbon of glucose and 2nd carbon of fructose are combined, the anomeric carbon atoms of both are not available for the reduction property.