Question 1

What are the products of the following reaction?

Accepted Answer

A)   D
B)   A
C)   C
D)   BE) B) and C)
F) A) and C)

Question 2

What is the composition of sucrose?

Accepted Answer

A)   Repeating unit of glucose units joined in a b-1,4'-glycosidic linkage
B)   Two glucose units with a a-1,4'-glycoside bond
C)   One galactose and one glucose unit with a b-1,4'-glycoside bond
D)   One glucose and one fructose unit with a a-glycosidic bond to the 2' carbon of a fructofuranose ringE) A) and D)
F) A) and C)

Question 3

Amylose is a polysaccharide with ________ linkages.

Accepted Answer

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

Question 4

Cellulose is a polysaccharide with ________ linkages.

Accepted Answer

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

Question 5

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.
 6H12O6 - 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.    A)  D B)  C C)  A D)  B" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   D
B)   C
C)   A
D)   BE) A) and C)
F) C) and D) C

Question 6

What type of linkage is present in chitin?

Accepted Answer

A)   beta-1,2'-glycosidic linkage
B)   alpha-1,2'-glycosidic linkage
C)   alpha-1,4'-glycosidic linkage
D)   beta-1,4'-glycosidic linkageE) C) and D)
F) None of the above D

Question 7

Which of the following is D-glucose?

Accepted Answer

A)   I
B)   II
C)   III
D)   IVE) B) and C)
F) B) and D)

Question 8

Which of the following is D-fructose?

Accepted Answer

A)   I
B)   IV
C)   II
D)   IIIE) A) and B)
F) A) and C) A

Exam 23: Carbohydrates

What are the products of the following reaction?

Correct Answer
verified

What is the composition of sucrose?

Correct Answer
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Amylose is a polysaccharide with ________ linkages.

Correct Answer
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Cellulose is a polysaccharide with ________ linkages.

Correct Answer
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Correct Answer
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C

What type of linkage is present in chitin?

Correct Answer
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D

Which of the following is D-glucose?

Correct Answer
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Which of the following is D-fructose?

Correct Answer
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A

Exam 23: Carbohydrates

What are the products of the following reaction?

Correct AnswerverifiedShow Answer

What is the composition of sucrose?

Correct AnswerverifiedShow Answer

Amylose is a polysaccharide with ________ linkages.

Correct AnswerverifiedShow Answer

Cellulose is a polysaccharide with ________ linkages.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedC

What type of linkage is present in chitin?

Correct AnswerverifiedD

Which of the following is D-glucose?

Correct AnswerverifiedShow Answer

Which of the following is D-fructose?

Correct AnswerverifiedA

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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C

Correct Answer
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D

Correct Answer
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Correct Answer
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A