Download - Intermediate 1 Unit 3c Carbohydrates 123 4567 89 10 111213 14 15 22 23242526 161718192021 27
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Intermediate 1 Unit 3c Carbohydrates
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What does a balanced diet provide the body with?
All the essential elements and compounds
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Name the 4 major elements of the human body.
Carbon, hydrogen, oxygen and nitrogen
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Are the elements present in the diet as free elements or as
compounds.?
Compounds
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Name the three essential compounds provided
by our food?
Carbohydrates, fats and proteins
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How much of our body weight is made up of water?
More than 60%
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What do mineral supply us with?
Trace elements
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What are the trace elements ?
Elements needed in small quantities
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Name two trace elements and say what each one
is needed for.
Calcium - bones and teeth
Iron - blood
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Why is it dangerous to take trace elements in large quantities?
They are toxic
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What does the body use carbohydrates for?
Energy
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Name the three elements present in a carbohydrate.
Carbon, hydrogen
and oxygen
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Name the two groups of carbohydrates.
Sugars and starches
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Which sugar is table sugar?
Sucrose
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Name four sugars.
Fructose, glucose, maltose and sucrose
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What is the test for starch?
Iodine solution turns black
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What colour does Benedict’s solution turn if a sugar is present.
From blue to brick red
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Which sugar cannot be detected with Benedict’s solution?
Sucrose
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Are sugars made from small or large molecules?
Small molecules
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What size of molecule is starch?
A large molecule-polymer
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What do plants convert glucose into for storing energy?
Starch
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What happens to starch during digestion?
Broken down into glucose
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What happens to glucose after it is produced during digestion?
It is carried by the blood to body cells where respiration
takes place.
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Name two substances which can break down starch.
Enzymes and acid.
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At what temperature do body enzymes work best at?
370C - body temperature
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What happens to body enzymes at high temperatures?
They are destroyed
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Which group of carbohydrates are sweet tasting and dissolve in water?
Sugars
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What are carbohydrates made by?
Plants
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Intermediate 1 Unit 3c
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