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Chapter 13: A.13.60 (page 467)

What are the disaccharides and polysaccharides present in each of the following? (13.6,13.7)

Short Answer

Expert verified

A disaccharide, often known as double sugar, is a compound made up of two simple sugar molecules (monosaccharides) bonded together.

Step by step solution

01

Introduction

  • Lactose is made up of galactose and glucose connected by a 1,4-glycosidic bond and is present in milk and dairy products.
02

a) Identify the disaccharides and polysaccharides present in each of the following

  • Lactose, often known as milk sugar, is commonly found in milk.
  • Lactose is a disaccharide that is generated when galactose and glucose are combined.

03

b) Identify the disaccharides and polysaccharides present in each of the following 

  • The most important of them are sucrose, lactose, and maltose.
  • Sucrose is the most abundant and consists of a molecule of 伪-glucose and 尾-fructose linked together.
  • Maltose is mainly produced by partial hydrolysis of starch and consists of two glucose units linked by an 伪-1,4-glycosidic bond.
  • Potatoes contain three main types of sugars: fructose, glucose, and sucrose. Sucrose is a disaccharide formed from glucose and fructose.

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Most popular questions from this chapter

Draw the Fischer projection for the oxidation and the reduction products of D-mannose. What are the names of the sugar acid and the sugar alcohol produced?

Gentiobiose is found in saffron.(13.4,13.5,13.6)

a. Gentiobiose contains two glucose molecules linked by a 尾(1鈫�6)-glycosidic bond. Draw the Haworth structure for 尾-gentiobiose.

b. Is gentiobiose a reducing sugar? Explain.

Identify each of the following structures as chiral or achiral. If chiral, indicate the chiral carbon.

Kate's blood volume is 3.9L. After three months of diet and exercise, if her blood glucose is 146mg/dL, how many grams of glucose are in her blood?

Give the name of one or more polysaccharides that matches each of the following descriptions:

a. not digestible by humans

b. the storage form of carbohydrates in plants

c. contains only 伪(1鈫�4)-glycosidic bonds

d. the most highly branched polysaccharide
See all solutions

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