DISACCHARIDES: Definition and Formation via Glycosidic Bonds

DISACCHARIDES: Definition and Formation via Glycosidic Bonds

University

10 Qs

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DISACCHARIDES: Definition and Formation via Glycosidic Bonds

DISACCHARIDES: Definition and Formation via Glycosidic Bonds

Assessment

Quiz

Chemistry

University

Hard

Created by

DNAce Learning Center

FREE Resource

10 questions

Show all answers

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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