(a) Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled. Concept introduction: The characteristic bond of glycoside is − O − . A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl . The acetal formed is known as glycoside.

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Answer 1

Question

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

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Which statement about saccharides is correct? (A). Alpha anomers are more common than beta anoomers. (B). Two monosaccharides can form a disaccharide and oxygen. (C). Polysaccharides with alpha or beta glycosidic linkages have the different properties. (D). Disaccharides can be cyclic or acyclic.

3. A(n) is a molecule that is synthesized in one part of the body and has an effect in a different part. A) fatty acid B) enzyme C) hormone D) vitamin 4. DNA is a double-stranded nucleic acid that exists as a double helix. Which is responsible for holding the double helix of DNA together? A) Phosphodiester bonds between complementary base pairs on each strand B) B-N-glycosidic linkages between the sugar-phosphate backbone of each strand C) Disulfide bonds between the cysteine residues on each strand D) Hydrogen bonding between complementary bases on each strand 5. Which type of inhibitor is most likely to bind somewhere other than an enzyme's active site? A) competitive B) lock and key C) noncompetitive D) substrate 6. The compound shown below is best classified as what type of lipid? HO, A) Triacylglycerol B) Soap C) Fatty acid D) Wax

Monosaccharides are cyclic hemiacetals that can react with alcohols to form acetals. The bond between the anomeric carbon atom of the monosaccharide and the oxygen atom of the -OR group is called a glycosidic bond. The name of the linkage contains the designation alpha (a) or beta (B) (from the anomeric carbon in the glycosidic bond) and the carbon numbers for the carbons from the two sugars. For this example, the linkage is an a-1,4 glycosidic bond. Н НО HO اب تاب است H OH H OH -OH Н Н OH H + OH HO a anomer CH₂OH H Н H О OH H2C OH Н H Classify the glycosidic linkage in the disaccharide. Н OH Н H OH OH OH - HO Н H HO OH OH Н CH₂OH H -OH H OH он H H -OH Н OH an a glycosidic bond Н OH + H2O о о о о В-1,6 a-1,6 a-1,1 B-1,5 I DON'T KNOW YET submit

Answer 2

Question

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

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Answer 3

Question

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

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Answer 4

Question

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

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Answer 5

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Answer 6

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Answer 7

Chapter 28, Problem 28.18P

Interpretation Introduction

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Answer 8

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Answer 9

Interpretation Introduction

(b)

Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 28 - Prob. 28.1P Ch. 28 - Prob. 28.2P Ch. 28 - Label each stereogenic center as R or S. a. b. c....Ch. 28 - Convert the ball-and-stick model to a Fischer...Ch. 28 - Prob. 28.5P Ch. 28 - Prob. 28.6P Ch. 28 - Prob. 28.7P Ch. 28 - Prob. 28.8P Ch. 28 - Prob. 28.9P Ch. 28 - Prob. 28.10P

Solution Summary: The author explains that the O atoms that are part of a glycoside in rebaudioside A are labeled in red color.

Concept explainers

(a)

Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled.

Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

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Chapter 28 Solutions

Solution Summary: The author explains that the O atoms that are part of a glycoside in rebaudioside A are labeled in red color.

Concept explainers

(a) Interpretation: The O atoms that are part of a glycoside in rebaudioside A are to be labeled. Concept introduction: The characteristic bond of glycoside is −O−. A hemiacetal converts into acetal when a monosaccharide is treated with alcohol and HCl. The acetal formed is known as glycoside.

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Chapter 28 Solutions