Q. 13.49 Give the name of one or more pol... [FREE SOLUTION]

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Chapter 13: Q. 13.49 (page 461)

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

Short Answer

Expert verified

Part a) Cellulose cannot be digested by humans

Part b) Starch is a glucose storage

Part c) Amylose is one of two types of starch polysaccharides with only one $伪 (1 鈫� 4)$ glycosidic bond.

Part d) Glycogen is a polysaccharide that is more branched than amylopectin.

Step by step solution

Introduction about Polysaccharides (Part a)

Polysaccharides are carbohydrates that include $10$ or more monosaccharides.
The glycosidic bond is the most important bond in polysaccharide structural stability.
These polysaccharides create more than $10$ monosaccharide units after complete hydrolysis.

Explanation (Part a)

In plants, cellulose is a primary structural carbohydrate.
The $b e t a (1 鈫� 4)$ glycosidic bond connects lengthy unbranched glucose units in cellulose.
Humans have an enzyme called $a l p h a$ -amylase, which can hydrolyze $a l p h a (1 鈫� 4)$ glycosidic bonds but not $b e t a (1 鈫� 4)$ glycosidic bonds.
That is why cellulose cannot be digested by humans.

Explanation (Part b)

Starch is a glucose storage which is form in plants made up of two types of polysaccharides: amylose and amylopectin.
As a result, two types of starch polysaccharides, amylose and amylopectin, operate as storage polysaccharides in plants.

Explanation (Part c)

Amylose is one of two types of starch polysaccharides with only one $伪 (1 鈫� 4)$ glycosidic bond.
Amylose is formed of of about $4000$ $伪$ -D-glucose units that are connected by a $伪 (1 鈫� 4)$ glycosidic linkages.

Explanation (Part d)

Glycogen is a glucose storage type in mammals.
It's a glucose polymer with a structure which is comparable to amylopectin.
$a (1 鈫� 4)$ -glycosidic linkages connect $伪$ -D-glucose units in glycogen.
Branches with $a (1 鈫� 6)$ -glycosidic links occur every $10$ to $15$ glucose units, though.
It is a polysaccharide that is more branched than amylopectin.

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91影视

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

Short Answer

Step by step solution

Introduction about Polysaccharides (Part a)

Explanation (Part a)

Explanation (Part b)

Explanation (Part c)

Explanation (Part d)

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91影视

Give the name of one or more polysaccharides that matches each of the following descriptions:a. not digestible by humansb. the storage form of carbohydrates in plantsc. contains only 伪(1鈫�4)-glycosidic bondsd. the most highly branched polysaccharide

Short Answer

Step by step solution

Introduction about Polysaccharides (Part a)

Explanation (Part a)

Explanation (Part b)

Explanation (Part c)

Explanation (Part d)

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemical Analysis

Ionic and Molecular Compounds

Nuclear Chemistry

Inorganic Chemistry

Chemistry Branches

Chemical Reactions

Study anywhere. Anytime. Across all devices.

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