(a) Interpretation: The structure of an L- aldopentose needs to be drawn. Concept introduction: Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

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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, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

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Identify the organic functional groups and reaction type for the following reaction.The reactant is a(n)a. two hemiacetalsb. disaccharidec. esterd. ethere. alcohol pyranosesThe product is a(n)a. beta 1-6 disaccharideb. beta 1-4 disaccharidec. alpha 1-6 disaccharided. beta 1-2 disaccharidee. alpha 1-2 disaccharidef. alcohol pyranosesg. alpha 1-4 disaccharideh. two hemiacetalsThe reaction type is:a. hydrolysisb. mutarotationc. reduction (hydrogenation)d. hemiacetal formatione. acetal formationf. oxidation (benedict's)

Identify the organic functional groups and reaction type for the following reaction.The reactant is a(n)a. ketohexoseb. alcohol hexosec. aldohexosed. carboxylic acid pentosee. deoxyhexoseThe product is a(n)a. alcohol pyranosesb. etherc. ester d. hemiacetals (anomers)e. acetals (disaccharide)The reaction type is:a. hemiacetal formationb. mutarotationc. hydrolysisd. oxidation (benedict's)e. hemiacetal formationf. reduction (hydrogenation)

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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, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

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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, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

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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, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

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Answer 5

Chapter 20, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

Answer 6

Chapter 20, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Answer 7

Chapter 20, Problem 21P

Interpretation Introduction

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Answer 8

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 1

Answer 9

Expert Solution

Answer 10

Expert Solution

Answer 11

Expert Solution

Answer 12

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while in L- sugars, the OH group on the bottom chiral center points to the left. Aldopentose is a five-carbon aldehyde sugar. Xylose, Arabinose and Ribose are few examples.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 2

Answer 13

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Answer 14

Interpretation Introduction

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Answer 15

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 3

Answer 16

Expert Solution

Answer 17

Expert Solution

Answer 18

Expert Solution

Answer 19

Explanation of Solution

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. The absolute configuration of a molecule can be explained using D and L configuration. In D- sugars, the OH group on the bottom chiral center points to the right while if L-sugars, the OH group on the bottom chiral center points to the left. Aldotetrose is a four-carbon aldehyde sugar.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 4

Answer 20

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

Answer 21

Interpretation Introduction

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Answer 22

Expert Solution

Answer to Problem 21P

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 5

Answer 23

Expert Solution

Answer 24

Expert Solution

Answer 25

Expert Solution

Answer 26

Explanation of Solution

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide. In this reduction process, an aldehyde group or a ketone group converts into −CH₂OH group. Xylitol is an example of an alditol.

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 6

For an example:

General, Organic, and Biological Chemistry - 4th edition, Chapter 20, Problem 21P , additional homework tip 7

Answer 27

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

(a) Interpretation: The structure of an L- aldopentose needs to be drawn. Concept introduction: Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Concept explainers

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Answer to Problem 21P

Explanation of Solution

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Answer to Problem 21P

Explanation of Solution

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Answer to Problem 21P

Explanation of Solution

Want to see more full solutions like this?

Chapter 20 Solutions

(a) Interpretation: The structure of an L- aldopentose needs to be drawn. Concept introduction: Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Concept explainers

(a) Interpretation: The structure of an L- aldopentose needs to be drawn. Concept introduction: Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

Answer to Problem 21P

Explanation of Solution

(b) Interpretation: The structure of a D- tetrose needs to be drawn. Concept introduction: Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

Answer to Problem 21P

Explanation of Solution

(c) Interpretation: The structure of a five-carbon alditol needs to be drawn. Concept introduction: Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.

Answer to Problem 21P

Explanation of Solution

Want to see more full solutions like this?

Chapter 20 Solutions

(a)

Interpretation:

The structure of an L- aldopentose needs to be drawn.

Concept introduction:

Sugar molecules can be named as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldopentose is a five-carbon aldehyde sugar.

(b)

Interpretation:

The structure of a D- tetrose needs to be drawn.

Concept introduction:

Sugar molecules can name as D or L sugars according to their most oxidized carbon at the top of the Fisher projection. Aldotetrose is a four-carbon aldehyde sugar.

(c)

Interpretation:

The structure of a five-carbon alditol needs to be drawn.

Concept introduction:

Alditols are polyols. Alditols can be produced by reducing an aldehyde or a ketone group in a monosaccharide.