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Intermediate 1 Unit 3c Carbohydrates 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 2 2 2 3 2 4 2 5 2 6 1 6 1 7 1 8 1 9 2 0 2 1 2 7
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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
Name the 4 major elements of the human body.
Carbon, hydrogen, oxygen and nitrogen
Are the elements present in the diet as free elements or as
compounds.?
Compounds
Name the three essential compounds provided
by our food?
Carbohydrates, fats and proteins
How much of our body weight is made up of water?
More than 60%
What do mineral supply us with?
Trace elements
What are the trace elements ?
Elements needed in small quantities
Name two trace elements and say what each one
is needed for.
Calcium - bones and teeth
Iron - blood
Why is it dangerous to take trace elements in large quantities?
They are toxic
What does the body use carbohydrates for?
Energy
Name the three elements present in a carbohydrate.
Carbon, hydrogen
and oxygen
Name the two groups of carbohydrates.
Sugars and starches
Which sugar is table sugar?
Sucrose
Name four sugars.
Fructose, glucose, maltose and sucrose
What is the test for starch?
Iodine solution turns black
What colour does Benedict’s solution turn if a sugar is present.
From blue to brick red
Which sugar cannot be detected with Benedict’s solution?
Sucrose
Are sugars made from small or large molecules?
Small molecules
What size of molecule is starch?
A large molecule-polymer
What do plants convert glucose into for storing energy?
Starch
What happens to starch during digestion?
Broken down into glucose
What happens to glucose after it is produced during digestion?
It is carried by the blood to body cells where respiration
takes place.
Name two substances which can break down starch.
Enzymes and acid.
At what temperature do body enzymes work best at?
370C - body temperature
What happens to body enzymes at high temperatures?
They are destroyed
Which group of carbohydrates are sweet tasting and dissolve in water?
Sugars
What are carbohydrates made by?
Plants
Intermediate 1 Unit 3c
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