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Chapter 13: Q. 13.33 (page 450)

Draw the Haworth structures for 伪-Glucose and 尾-Glucose.

Short Answer

Expert verified

The Haworth structures are,

Step by step solution

01

Introduction

Haworth projection is a now no longer unusual place way of writing a structural machine to represent the cyclic form of monosaccharides with a smooth three-d perspective.

02

Structure of α-Glucose

The form of 伪-Glucose:

In the glucose ring, there are five carbon atoms and one oxygen atom.

In 伪-glucose-OH institution on carbon-1of the ring is gift beneath the aircraft of the ring.

03

Structure of β-D-Glucose

The form of 尾-Glucose:

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Most popular questions from this chapter

Classify each of the following monosaccharides as an aldopentose, ketopentose, aldohexose, or ketohexose:

a. Psicose is present in low amounts in foods.

b. Lyxose is a component of bacterial glycolipids.

The next day. Kate had 1 cup of cereal (15gcarbohydrate) with skim milk(7gcarbohydrate). 1 banana (17gcarbohydrate). and 12cup of orange juice ( 12gcarbohydrate) for breakfast.

a. Has Kate remained within the limit of 45to 60gof carbohydrate?

b. Using the energy value of 4kcal/gfor carbohydrate, calculate the total kilocalories from carbohydrates in Kate's breakfast, rounded to the tens place.

Melezitose, a carbohydrate secreted by insects, has the following Haworth structure:(13.4,13.5,13.6)

a. Is melezitose a mono-, di-, or trisaccharide?

b. What monosaccharides are present in melezitose?

c. Is melezitose a reducing sugar?

Draw the Fischer projection for the other enantiomer of a to d in problem 13.21.

Indicate whether each disaccharide in the following figure is a reducing sugar or not.

a.

b.
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