Concept explainers
Interpretation:
The acetal or hemiacetal grouping of trehalose, reducing or nonreducing property of trehalose and the link between two monosaccharides have to be determined.
Concept introduction:
Reducing sugar: Sugars that contain
Anomeric position is carried by a
Anomeric position is carried by an alkoxy group for acetal sugars.
Hemiacetal sugars are in equilibrium with their open chain form.
Acetal sugars are not in equilibrium with their open chain form.
The linkage between monosaccharides in a disaccharide is referred to as a glycosidic linkage. Two
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Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
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- How many chiral centers are there in the open-chain form of glucose? In the cyclic form?arrow_forwardConsidering the formation of glycosidic linkages between monosaccharides, how many possible trisaccharides can be produced by combining glucose, mannose and galactose? How does this differ from the number of possibilities for a tripeptide composed of three different amino acids?arrow_forwardWhat structural relationship is indicated by term D-Sugar ? Why are glucose and frutose both characterizes as sugars ? Write the principal functional role of D-Glucose , D- Fructose, and D- Galactose ?arrow_forward
- Can you please identify the name of each of the structures of sugar and identify as reducing or nonreducing sugar of a,b,c and d? The picture is posted. One of the structures may be not identified from the usual structures of disaccharides.arrow_forwardDoes trehalose (Problem 20.68) have an acetal grouping? A hemiacetal grouping? Do you expect trehalose to be a reducing or nonreducing sugar? Classify the linkage between the two monosaccharides.arrow_forwardIs sucrose a reducing or non-reducing sugar? Explain. Is lactose a reducing non reducing sugar? Explain.arrow_forward
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