Question

Why do starch and glycogen, despite the fact that they have a reducing end, give a negative test for reducing sugars?

Answer 1

It is a reducing sugar with only one reducing end; no matter how large the glycogen molecule is or how many branches it has, each branch ends in a nonreducing sugar residue. When glycogen is broken down to be used as an energy source, glucose units are removed one at a time from the nonreducing ends by enzymes.

Answer 2

Explanation:

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