
DISACCHARIDES: Definition and Formation via Glycosidic Bonds

Quiz
•
Chemistry
•
University
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In disaccharide formation, a glycosidic bond always forms between the anomeric carbon of the first sugar and a non-anomeric carbon of the second sugar.
TRUE
FALSE
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Disaccharides consist of two monosaccharide units joined together by a glycosidic bond
TRUE
FALSE
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following disaccharides is non-reducing?
Maltose
Sucrose
Lactose
Cellobiose
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following accurately describes a class of carbohydrates based solely on the number of glycosidic linkages?
Monosaccharides: no glycosidic linkages and no carbonyl group
Disaccharides: contain one glycosidic linkage between two monosaccharide units
Oligosaccharides: contain fewer glycosidic linkages than disaccharides
Polysaccharides: formed by multiple peptide linkages between sugars
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following statements best compares the structures of lactose and sucrose?
Both are composed of glucose and galactose linked by an α(1→4) glycosidic bond.
Lactose is a non-reducing sugar, while sucrose is a reducing sugar.
Sucrose contains a glucose and fructose linked by an α(1→2)β bond, making it non-reducing.
Lactose is made of glucose and fructose and is more stable than sucrose.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A patient’s stool sample tests positive for reducing sugars but negative for glucose? Which disaccharide is most likely present in the stool?
Sucrose
Glucose
Lactose
Maltose
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sucrose
Glucose + Galactose, β(1→4) bond
Glucose + Fructose, α(1→2) bond
Glucose + Glucose, β(1→4) bond
Glucose + Glucose, α(1→4) bond
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