(a) Interpretation: The structure of an aldotetrose should be drawn. Concept Introduction: Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones , they are called ketoses. Monosaccharides can be classified by the number of carbons in the carbon chain. 3 C's − triose 4 C's − tetrose 5 C's − pentose 6 C's − hexose In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

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Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

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Students have asked these similar questions

Draw the structure of (a) a ketotetrose; (b) an aldopentose; (c) an aldotetrose.

Draw the structure of: (a) a polysaccharide formed by joining D-mannose units in 1->4-ß-glycosidic linkages; (b) a polysaccharide formed by joining D-glucose units in 1->6-a-glycosidic linkages. The polysaccharide in (b) is dextran, a component of dental plaque.

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.

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

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Answer 5

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 6

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 7

Chapter 20.2, Problem 20.3P

Interpretation Introduction

(a)

Interpretation:

The structure of an aldotetrose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The structure of a ketopentose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones and they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The structure of an aldohexose should be drawn.

Concept Introduction:

Monosaccharides in which the carbonyl group is at C-1 position are aldehydes and they are called aldoses. If the carbonyl group is at C-2 position are ketones, they are called ketoses.

Monosaccharides can be classified by the number of carbons in the carbon chain.

3 C's − triose

4 C's − tetrose

5 C's − pentose

6 C's − hexose

In the classification of monosaccharides based on type of carbonyl group and number of carbons present in the chain, if the monosaccharide contains an aldehyde group, the prefix aldo- is added to the name and it is called an aldose. On the other hand, if a ketone group is present, it is a ketose or the prefix keto- is added.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 20.1 - Label the hemiacetal carbonthe carbon bonded to...Ch. 20.2 - Prob. 20.1PP Ch. 20.2 - Prob. 20.2P Ch. 20.2 - Prob. 20.3P Ch. 20.2 - Prob. 20.4P Ch. 20.2 - Prob. 20.5P Ch. 20.2 - Prob. 20.2PP Ch. 20.2 - Prob. 20.6P Ch. 20.2 - Prob. 20.7P Ch. 20.3 - Prob. 20.8P

Solution Summary: The author explains the structure of an aldotetrose, which can be classified by the number of carbons in the carbon chain.

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Chapter 20 Solutions