1.4 Carbohydrate: Polysaccharides Flashcards

The different types of polysaccharides: starch, glycogen, and cellulose How their structures relate to their functions

1
Q

What are polysaccharides?

A

Complex carbohydrates made of many monosaccharides

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2
Q

What are examples of polysaccharides?

A

Starch

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3
Q

What is starch?

A

A polysaccharide used by plants to store glucose

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4
Q

What monosaccharide makes up starch?

A

Alpha-glucose

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5
Q

What types of glycosidic bonds are in starch?

A

1-4 and 1-6

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6
Q

What are the two forms of starch chains?

A

Unbranched and branched

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7
Q

Why is starch a good energy store?

A

Insoluble

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8
Q

What is glycogen?

A

A polysaccharide used by animals to store glucose

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9
Q

What monosaccharide makes up glycogen?

A

Alpha-glucose

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10
Q

What types of glycosidic bonds are in glycogen?

A

1-4 and 1-6

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11
Q

Why is glycogen a good energy store?

A

Insoluble

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12
Q

What is cellulose?

A

A polysaccharide that provides structural support in plant cell walls

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13
Q

What monosaccharide makes up cellulose?

A

Beta-glucose

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14
Q

How are beta-glucose molecules arranged in cellulose?

A

Every other molecule is inverted

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15
Q

What type of bonds link cellulose chains?

A

Hydrogen bonds

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16
Q

What are microfibrils?

A

Bundles of cellulose chains

17
Q

What are macrofibrils?

A

Bundles of microfibrils

18
Q

How is cellulose adapted for its role?

A

Long straight unbranched chains

19
Q

What is the source of cellulose?

A

Plant cell walls

20
Q

What is the source of starch?

A

Plant starch grains

21
Q

What is the source of glycogen?

A

Animal liver and muscle

22
Q

What is the monomer of cellulose?

A

Beta-glucose

23
Q

What is the monomer of starch?

A

Alpha-glucose

24
Q

What is the monomer of glycogen?

A

Alpha-glucose

25
What are the bonds in cellulose?
1-4 glycosidic bonds
26
What are the bonds in starch?
1-4 and 1-6 glycosidic bonds
27
What are the bonds in glycogen?
1-4 and 1-6 glycosidic bonds
28
Are there branches in cellulose?
No
29
Are there branches in starch?
Yes and No (can be both branched and unbranched)
30
Are there branches in glycogen?
Yes