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What is the Haworth projection of the α anomer of a monosaccharide epimeric with D-glucose at C3? What is the Haworth projection of the α anomer of a monosaccharide epimeric with D-glucose at C3? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) A) and C)
F) A) and D)

Correct Answer

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What is the Fischer projection of the monosaccharide from which the following glycoside was prepared? What is the Fischer projection of the monosaccharide from which the following glycoside was prepared? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) None of the above
F) A) and D)

Correct Answer

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Amylose is a polysaccharide with ________ linkages.


A) b-1,4'-glycosidic
B) a-1,4'-glycosidic
C) b-1,6'-glycosidic
D) a-1,6'-glycosidic

E) A) and D)
F) B) and C)

Correct Answer

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From the disaccharides listed below,which one will not undergo mutarotation?


A) Sucrose
B) Maltose
C) Lactose
D) Xylobiose

E) All of the above
F) C) and D)

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The following reaction is an example of a base-catalyzed epimerization reaction in which a ketose is converted to a pair of aldoses.What are the products from this reaction? The following reaction is an example of a base-catalyzed epimerization reaction in which a ketose is converted to a pair of aldoses.What are the products from this reaction? A) D-glucose and D-mannose B) D-galactose and D-talose C) D-talose and D-idose D) D-glucose and D-idose


A) D-glucose and D-mannose
B) D-galactose and D-talose
C) D-talose and D-idose
D) D-glucose and D-idose

E) None of the above
F) A) and C)

Correct Answer

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Upon hydrolysis of cellulose,what sugar is formed?


A) Sucrose
B) Maltose
C) Lactose
D) Glucose

E) C) and D)
F) B) and C)

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Which is the correct Fischer projection for the open-chain form of the carbohydrate shown below? Which is the correct Fischer projection for the open-chain form of the carbohydrate shown below? A) A B) B C) C D) D


A) A
B) B
C) C
D) D

E) C) and D)
F) B) and C)

Correct Answer

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Which of the following best describes the relationship between D-glucose and D-fructose?


A) Enantiomers
B) Epimers
C) Anomers
D) Constitutional isomers

E) C) and D)
F) All of the above

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D

What is the classification of pyranose forms of monosaccharides?


A) 5-Membered cyclic hemiacetals
B) 6-Membered cyclic acetals
C) 5-Membered cyclic acetals
D) 6-Membered cyclic hemiacetals

E) None of the above
F) All of the above

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Which sugar is represented by the line angle structure below? Which sugar is represented by the line angle structure below? A) D-fructose B) D-sorbose C) L-psicose D) L-tagatose


A) D-fructose
B) D-sorbose
C) L-psicose
D) L-tagatose

E) All of the above
F) A) and D)

Correct Answer

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Cellulose is a polysaccharide with ________ linkages.


A) b-1,4'-glycosidic
B) a-1,4'-glycosidic
C) b-1,6'-glycosidic
D) a-1,6'-glycosidic

E) None of the above
F) A) and B)

Correct Answer

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Which of the following compounds is a b anomer? Which of the following compounds is a b anomer? A) A B) B C) C D) D


A) A
B) B
C) C
D) D

E) B) and D)
F) A) and B)

Correct Answer

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C

Which of the following compounds is an aldose? Which of the following compounds is an aldose? A) A B) B C) C D) D


A) A
B) B
C) C
D) D

E) All of the above
F) A) and B)

Correct Answer

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What are the products of the following reaction? What are the products of the following reaction? A) A B) B C) C D) D


A) A
B) B
C) C
D) D

E) All of the above
F) B) and C)

Correct Answer

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D

Which of the following is D-galactose? Which of the following is D-galactose? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) C) and D)
F) A) and B)

Correct Answer

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What is the process called for the interconversion of one anomer to the other?


A) Racemization
B) Mutarotation
C) Epimerization
D) Enolization

E) A) and B)
F) A) and C)

Correct Answer

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The branching units in amylopectin,a polysaccharide,which enable this molecule to be water soluble are connected with ________ linkages.


A) b-1,4'-glycosidic
B) a-1,4'-glycosidic
C) a-1,6'-glycosidic
D) b-1,6'-glycosidic

E) A) and B)
F) A) and C)

Correct Answer

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How many possible stereoisomers are there of the following heptose? How many possible stereoisomers are there of the following heptose? A) 16 B) 21 C) 32 D) 64


A) 16
B) 21
C) 32
D) 64

E) None of the above
F) C) and D)

Correct Answer

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After a series of Kiliani-Fischer syntheses on D-glyceraldehyde,an unknown sugar was isolated from the reaction mixture.The following experimental data was obtained.What is the structure of this unknown sugar? Data: - Molecular formula: C6H12O6 - Reacts with phenylhydrazine to give an osazone,mp 178°C. - Reacts with HNO3 to give an optically active aldaric acid. - Wohl degradation followed by HNO3 oxidation gives an optically inactive Aldaric acid. - Two Wohl degradations followed by HNO3 oxidation give a meso-tartaric acid. After a series of Kiliani-Fischer syntheses on D-glyceraldehyde,an unknown sugar was isolated from the reaction mixture.The following experimental data was obtained.What is the structure of this unknown sugar? Data: - Molecular formula: C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> - Reacts with phenylhydrazine to give an osazone,mp 178°C. - Reacts with HNO<sub>3</sub> to give an optically active aldaric acid. - Wohl degradation followed by HNO<sub>3</sub> oxidation gives an optically inactive Aldaric acid. - Two Wohl degradations followed by HNO<sub>3</sub> oxidation give a meso-tartaric acid. A) A B) B C) C D) D


A) A
B) B
C) C
D) D

E) A) and C)
F) A) and B)

Correct Answer

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Which of the following reagents would convert glucose into ethyl glucopyranoside?


A) EtBr,aq.HCl
B) EtOH,aq.HCl
C) EtOH,NaOH
D) Ag2O in NH4OH

E) A) and D)
F) B) and D)

Correct Answer

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