Which is not a reducing sugar in urine.. Sucrose



Which is not a reducing sugar in urine?
a. Glucose.
b. Galactose.
c. Sucrose.
d. Fructose.

(c) A reducing substance is the one that reduces alkaline cupric sulfate to red coprous oxide. Most important are glucose, lactose, fructose, galactoses and pentoses (e.g. ribose, xylose and arabinose) while sucrose will not reduce alkaline cupric sulfate.