What is the total number of anomeric carbons in disaccharides that are linked by β-glycosidic bonds, such as lactose?A.0B.1C.2D.10
Question
What is the total number of anomeric carbons in disaccharides that are linked by β-glycosidic bonds, such as lactose?A.0B.1C.2D.10
Solution
The answer is C.2.
Here's the step-by-step explanation:
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Disaccharides are carbohydrates that consist of two monosaccharides (simple sugars) linked together.
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An anomeric carbon is the carbon derived from the carbonyl carbon (the carbon double-bonded to oxygen) of the open-chain form of the carbohydrate molecule.
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In the case of disaccharides like lactose, which are linked by β-glycosidic bonds, each of the two monosaccharides contributes one anomeric carbon to the bond.
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Therefore, there are 2 anomeric carbons in such disaccharides.
Similar Questions
Consider the monosaccharide below (two different representations of the same molecule):In this molecule, the anomeric carbon is found at position:
A disaccharide is formed by -------------- linkage between two monosaccharides
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O-linked D-mannose can form a glycosidic bond with any sugar that has a free anomeric carbon. Therefore it could theoretically form a glycosidic bond with all of the following sugars EXCEPT:A.galactose.B.ribose.C.lactose.D.sucrose.
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