Carbohydrates and Digestion

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Which chemical elements do carbohydrates contain?
Carbon, Oxygen and Hydrogen
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When two a-glucose molecules link together they form a disaccharide called...
Maltose
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When two a-glucose molecules link together the reaction is called a...
Condensation
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When two a-glucose molecules link together the bond formed is called a...
Glycocydic
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What is the molecular formula of glucose?
C6 H12 O6
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What is the molecular formula of maltose?
C12 H22 O11
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When many a-glucose molecules link together they form a molecule of...
Disaccharide
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Starch is a very large insoluble molecule found in some foods. Give two examples of food rich in starch.
Potatoes, Pasta, Bread, Cereals and Rice.
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Is sucrose a reducing sugar?
No
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Is maltose a reducing sugar?
Yes
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Which enzyme breaks down starch?
Amylase
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Describe how to test a solution for reducing sugar.
To 2cm3 of test solution add 2cm3 of Benedicts solution/reagent. Place in a hot water bath and leave for 3 minutes. If reducing sugar is present a brick red precipitate forms.
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Card 2

Front

When two a-glucose molecules link together they form a disaccharide called...

Back

Maltose

Card 3

Front

When two a-glucose molecules link together the reaction is called a...

Back

Preview of the front of card 3

Card 4

Front

When two a-glucose molecules link together the bond formed is called a...

Back

Preview of the front of card 4

Card 5

Front

What is the molecular formula of glucose?

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