Carbohydrates

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At what positions in the carbon chain do glucose molecules bond together?
1,4,6
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What is the difference between a-glucose and B-glucose?
The H and OH groups at the carbon 1 position are reversed.
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What does a-glucose and fructose form when bonded?
Sucrose (cane sugar) which is a disaccharide; how carbohydrates are transported in plants.
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What does a-glucose and a-glucose form when bonded?
Maltose which is a dissacharide; the product of starch digestion
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What type of reaction is the formation of maltose?
A condensation reaction
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What bond is formed when two a-glucose in difference planes bond?
a-1,4-glycosidic bond
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What is the process of breaking a glycosidic bond called?
A hydrolysis reaction
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What does the ending -ose mean?
The molecule is a carbohydrate.
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What does the ending -ase mean?
The molecule is an enzyme.
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What is the simplest polysaccaride?
Amylose (a consituent of starch in plants)
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Why does a helical structure form in the production of polysaccharides?
Since the a-glucoses join at slightly different angles to each other.
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What is a polymer?
A chain-like macromolecule made up of many similar units (monomers) bonded together. All polysaccharides are polmers of monosaccharides.
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Identift two ways in which starch molecules from different plants can differ from each other.
Starch molecules can differ in the relative amounts of amylose and amylopectin, and in the number of glucose molecules contained within each
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Other cards in this set

Card 2

Front

What is the difference between a-glucose and B-glucose?

Back

The H and OH groups at the carbon 1 position are reversed.

Card 3

Front

What does a-glucose and fructose form when bonded?

Back

Preview of the front of card 3

Card 4

Front

What does a-glucose and a-glucose form when bonded?

Back

Preview of the front of card 4

Card 5

Front

What type of reaction is the formation of maltose?

Back

Preview of the front of card 5
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