A disaccharide can be considered a reducing sugar if, it contains both glycogen. a. none of the above b. false c. maybe d. true

b. false<br /><br />A disaccharide can be considered a reducing sugar if it contains a free aldehyde or ketone group. Glycogen is a polysaccharide, not a disaccharide, and does not determine whether a disaccharide is a reducing sugar.