What is the Difference between Reducing Sugars and Non-Reducing Sugars?

-REDUCING Sugars are just Simple Sugars made from ONE Unit, like Glucose, or a FEW MADE from Units joining Together, like Maltose -NON-REDUCING Sugars are Complicated, but Sucrose is a Perfect Example [Note if your Test for Reducing Sugars went Negative, there still might be Sugars in there, Non-Reducing Sugars.]