The structure of D − allose , the C 3 epimer of D − glucose is to be drawn. Concept introduction: The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

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Answer 1

Question

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

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2. Draw the two aldohexoses and one ketohexose that can be derived from the enol shown below. HC OH но H- HO- HO ČH,OH 3. Classify the following monosaccharides as reducing and nonreducing sugars. CH,OH CH,OH CH,OH OH он но - HO- OH OH HO он OH OH ČH,OH II III 4. Identify and name the glycosidic bond in the structure shown below. CH,OH OH OH он

Construct the following Carbohydrates:1. Beta-D-Galactopyranosyl(1-4)-Beta-D-Glucopyranose ( Lactose)2. SAlpha-D-Glucopyranosyl(1-2)-Beta-D-Fructofuranoside ( Sucrose)3. Based on the structures in No.1 and No.2, why is it that Lactose is a reducing sugar while Sucrose is not a reducing sugar?4. Amylose- Alpha-D-Glucose(1-4) linked chain5. Amylopectin- Alpha-D-Glucose(1-4) branched in Alpha (1-6) linked chain ( branched every 24-30 Glc)6. Glycogen- Alpha-D-Glucose(1-4) branched in Alpha(1-6) linked chain ( branched every 8 to 12 glucose residues)7. Cellulose- Beta-D-Glucose(1-4) linked chain with Glucose inverted with respect to each other

B4. CH₂OH H H но. H CH₂OH OH H AR Zeval O OH H H HO H O H OH OH H OH H OH H OH OH/ H H Lactose H OH НО. H OH H H Sucrose The structures of the disaccharides lactose and sucrose are shown above. a) Identify the monosaccharide residue that is common to both disaccharides. OH b) Identify and explain the diastereomeric relationship between two of the monosaccharide units in these sugars. c) Draw a simple mechanism for the lactase-catalyzed cleavage of the glycosidic bond in lactose. d) Explain why lactose and sucrose give different results in the Benedict's test.

Answer 2

Question

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

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Answer 3

Question

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

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Answer 4

Question

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

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Answer 5

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

Answer 6

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Answer 7

Chapter 23.3C, Problem 23.6P

(a)

Interpretation Introduction

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Answer 12

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

Answer 13

(d)

Interpretation Introduction

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

Answer 14

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Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 23.2 - Prob. 23.1P Ch. 23.3A - Prob. 23.2P Ch. 23.3A - Prob. 23.3P Ch. 23.3B - Draw and name the enantiomers of the sugars shown...Ch. 23.3B - Prob. 23.5P Ch. 23.3C - Prob. 23.6P Ch. 23.4 - Draw the Haworth projection for the cyclic...Ch. 23.4 - Prob. 23.8P Ch. 23.4 - Prob. 23.9P Ch. 23.4 - Prob. 23.10P

The structure of D − allose , the C 3 epimer of D − glucose is to be drawn. Concept introduction: The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Solution Summary: The author illustrates the structure of D-Textallose, and the structures at second and third carbon atoms.

Concept explainers

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

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Chapter 23 Solutions

The structure of D − allose , the C 3 epimer of D − glucose is to be drawn. Concept introduction: The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Solution Summary: The author illustrates the structure of D-Textallose, and the structures at second and third carbon atoms.

Concept explainers

Interpretation: The structure of D−allose, the C3 epimer of D−glucose is to be drawn. Concept introduction: The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Interpretation: The structure of D−talose, the C2 epimer of D−galactose is to be drawn. Concept introduction: The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Interpretation: The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated. Concept introduction: The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Interpretation: The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated. Concept introduction: The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.

Want to see the full answer?

Chapter 23 Solutions

Interpretation:

The structure of D−allose, the C3 epimer of D−glucose is to be drawn.

Concept introduction:

The isomers that differ in configuration about a carbon that is asymmetric in nature are known as epimers.

Interpretation:

The structure of D−talose, the C2 epimer of D−galactose is to be drawn.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Interpretation:

The structure of D−idose, the C3 epimer of D−talose and its comparison with the Figure 23−3 is to be stated.

Concept introduction:

The isomers that differ in configuration about the carbon that is asymmetric in nature are known as epimers.

Interpretation:

The structure of C4 “epimer” of D−xylose and the name of the L-series sugar formed is to be stated.

Concept introduction:

The isomers that differ in configuration about one the carbon that is asymmetric in nature are known as epimers.