JC Biomolecules
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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How many biomolecules are there? What are they? | 4. Proteins, fats, carbohydrates, vitamins
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What is the function of proteins? | growth and repair of cells. Makes muscle, hair and enzymes.
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What is the function of fats? | Supply and store energy, insulate the body, protect internal organs (e.g. kidneys)
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List the 3 different types of carbohydrates | starch, sugar, fibre
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What are the functions of carbohydrates? | Slow release of energy (from starch and fibre) and fast release of energy (sugar), help food move through the intestines to prevent constipation (fibre)
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What is the function of vitamin C? | Keeps gums healthy, forms strong bones
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What is the function of Vitamin D? | Forms strong bones
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List 4 reasons we need food? | To grow, give us energy, repair any damage to the body, to prevent disease
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List some sources of protein | eggs, meat, poultry, fish, milk, cheese, nuts, peas, beans
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List some sources of fats | oils, butter, cream, milk
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List some sources of vitamins | fruit, green vegetables, potatoes, milk, cheese, fish liver oil
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List some sources of starch | bread, potatoes, rice, pasta
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List some sources of sugar | fruits, honey, sweets
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List some sources of fibre | cereals, brown bread, fruit and vegetables
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What happens when foods containing fat are rubbed onto brown paper? | They turn translucent
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What happens when iodine is added to foods containing starch? | They turn blue/black
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What chemical is used to test for starch? | Iodine
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What chemicals are used to test for protein? | sodium hydroxide and copper sulfate
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What chemical is used to test for a reducing sugar (glucose)? | Benedict's Solution
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What colour does Benedict's solution change when in the presence of reducing sugar (glucose)? | Brick Red
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What colour change occurs when testing for protein? | Blue - purple/lilac
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What acts as the control in the food tests? | Water
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
aileenwa
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