Question 1

Six-membered cyclic hemiacetal carbohydrates are called ________.

Accepted Answer

A)   furanose
B)   pyranose
C)   ketopentose
D)   aldopentose
E)   none of these

Question 2

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

Accepted Answer

A)   enantiomers
B)   anomers
C)   epimers
D)   constitutional isomers
E)   none of these

Question 3

Predict the product(s)  for the following Kiliani-Fischer synthesis.

Accepted Answer

A)   I & V
B)   II & IV
C)   I & III
D)   III & IV
E)   II & V A

Question 4

Which of the following is (are)  L-ketopentose(s) ?

Accepted Answer

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

Question 5

Which of the following disaccharides is (are)  not a reducing sugar(s) ?

Accepted Answer

A)   sucrose
B)   maltose
C)   lactose
D)   cellobiose
E)   None of these

Question 6

Which of the following statement(s)  best describe the main difference between maltose and cellobiose?

Accepted Answer

A)   Maltose has a  β\betaβ -1-4 glycosidic linkage and cellobiose has an  α\alphaα -1-4 glycosidic linkage
B)   Maltose is comprised of β\betaβ -D-glucopyranose and cellobiose is comprised of α\alphaα -D-glucopyranose
C)   Maltose is comprised of α\alphaα -D-glucopyranose and cellobiose is comprised of β\betaβ -D-glucopyranose
D)   Maltose has an α\alphaα -1-4 glycosidic linkage and cellobiose has a  β\betaβ -1-4 glycosidic linkage
E)   C & D

Question 7

Which of the following is a reducing sugar with a 1 →\rightarrow→   α\alphaα -glycosidic linkage?

Accepted Answer

A)   maltose
B)   cellobiose
C)   sucrose
D)   lactose
E)   B & D

Question 8

Predict the product(s)  for the following reaction.

Accepted Answer

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

Question 9

Draw the Fischer projection for the open-chain form of the following cyclic monosaccharide.

Accepted Answer

The answer of Draw the Fischer projection for the open-chain...

Question 10

Provide the reagents necessary to carry out the following conversion.

Accepted Answer

The answer of Provide the reagents necessary to carry out...

Question 11

Predict the major product for the following reaction.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   none of these

Question 12

Which of the following compound(s)  would produce D-glucose and D-mannose when treated with HCN followed by H2/Pd/BaSO4/H2O? 2/Pd/BaSO4/H2O?   A)  I B)  II C)  III D)  IV E)  V" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 13

Which of the following structures represent  β\betaβ -D-glucopyranose?

Accepted Answer

A)  I
B)  II
C)   III
D)  IV
E)   none of these

Question 14

Of the possible stereoisomers for galactose, how many are L-isomers?

Accepted Answer

A)   8
B)   6
C)   10
D)   3
E)   4

Question 15

Which carbon in the following monosaccharide is the anomeric carbon?

Accepted Answer

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

Question 16

What is the correct name for the following compound?

Accepted Answer

A)   α\alphaα -D-idopyranose
B)   β\betaβ -D-altopyranose
C)   β\betaβ -D-glucopyranose
D)   α\alphaα -D-galactopyranose
E)   β\betaβ -D-gulopyranose

Question 17

D-glucose & D-galactose are ______ epimers of each other.

Accepted Answer

A)   C-1
B)   C-2
C)   C-3
D)   C-4
E)   C-5

Question 18

A monosaccharide with six carbon atoms and an aldehyde functional group is called a _____.

Accepted Answer

A)   hexose
B)   ketohexose
C)   aldohexose
D)   ketoheptose
E)   ketose C

Question 19

Predict the product(s)  for the following Wohl degradation.

Accepted Answer

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

Question 20

Predict the product(s)  for the following reaction.

Accepted Answer

A)  I
B)  I&II
C)  III&IV
D)   IV
E)   I, II & IV

Exam 24: Carbohydrates

Six-membered cyclic hemiacetal carbohydrates are called ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Predict the product(s) for the following Kiliani-Fischer synthesis.

Correct AnswerverifiedA

Which of the following is (are) L-ketopentose(s) ?

Correct AnswerverifiedShow Answer

Which of the following disaccharides is (are) not a reducing sugar(s) ?

Correct AnswerverifiedShow Answer

Which of the following statement(s) best describe the main difference between maltose and cellobiose?

Correct AnswerverifiedShow Answer

Which of the following is a reducing sugar with a 1 →\rightarrow→ α\alphaα -glycosidic linkage?

Correct AnswerverifiedShow Answer

Predict the product(s) for the following reaction.

Correct AnswerverifiedShow Answer

Draw the Fischer projection for the open-chain form of the following cyclic monosaccharide.

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Provide the reagents necessary to carry out the following conversion.

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Predict the major product for the following reaction.

Correct AnswerverifiedShow Answer

Which of the following compound(s) would produce D-glucose and D-mannose when treated with HCN followed by H2/Pd/BaSO4/H2O?

Correct AnswerverifiedShow Answer

Which of the following structures represent β\betaβ -D-glucopyranose?

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Of the possible stereoisomers for galactose, how many are L-isomers?

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Which carbon in the following monosaccharide is the anomeric carbon?

Correct AnswerverifiedA

What is the correct name for the following compound?

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D-glucose & D-galactose are ______ epimers of each other.

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A monosaccharide with six carbon atoms and an aldehyde functional group is called a _____.

Correct AnswerverifiedC

Predict the product(s) for the following Wohl degradation.

Correct AnswerverifiedShow Answer

Predict the product(s) for the following reaction.

Correct AnswerverifiedShow Answer

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A

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Which of the following is a reducing sugar with a 1 $\rightarrow$ $\alpha$ -glycosidic linkage?

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Which of the following compound(s) would produce D-glucose and D-mannose when treated with HCN followed by H₂/Pd/BaSO₄/H₂O?

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Which of the following structures represent $\beta$ -D-glucopyranose? $Which of the following structures represent \beta -D-glucopyranose? A) I B) II C) III D) IV E) none of these$

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A

What is the correct name for the following compound? $What is the correct name for the following compound? A) \alpha -D-idopyranose B) \beta -D-altopyranose C) \beta -D-glucopyranose D) \alpha -D-galactopyranose E) \beta -D-gulopyranose$

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C

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