Trehalose, sophorose, and turanose are disaccharides. Trehalose is found in the cocoons of some insects, sophorose turns up in a few bean varieties, and turanose is an ingredient in low-grade honey made by bees with indigestion from a diet of pine tree sap. Identify among the following structures those that correspond to trehalose, sophorose, and turanose on the basis of the following information: 

(i) Turanose and sophorose are reducing sugars. Trehalose is nonreducing. 

(ii) Upon hydrolysis, sophorose and trehalose give two molecules each of aldoses. Turanose gives one molecule of an aldose and one molecule of a ketose. 

(iii) The two aldoses that constitute sophorose are anomers of each other. 

(a)

(b)

(c)

(d)

Transcribed Image Text:

НОСН HO HO- HOCH, OH HO НО НО