Biology: Year 9 Term 3: Food Testing

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What is the chemical to add to test for protein? What is it made of? (3)
Biuret - Sodium Hydroxide and Copper Sulfate
1 of 12
If protein is present, what colour/s will it turn? (2)
Pink/Purple
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What is the chemical to add to test for starch? (1)
Iodine
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If protein is present, what colour/s will it turn? (2)
Black/Blue
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What is the chemical to add to test for lipids (fats)? (1)
Sudan III
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What appears in the mixture if lipids (fats) are present? (2)
A red layer floating at the top
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What is the chemical to add to test for sugar/glucose? (1)
Benedict's Solution
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If sugar/glucose is present, what colour/s will it turn? (3)
Green, Yellow or Red
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For which solution must the test tube be placed in a water bath to react? (1)
Benedict's
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What does starch break down into? (1)
Sugars (Glucose)
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What does protein break down into? (1)
Amino Acids
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What does fat break down into? (2)
Fatty Acids and Glycerol
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Other cards in this set

Card 2

Front

If protein is present, what colour/s will it turn? (2)

Back

Pink/Purple

Card 3

Front

What is the chemical to add to test for starch? (1)

Back

Preview of the front of card 3

Card 4

Front

If protein is present, what colour/s will it turn? (2)

Back

Preview of the front of card 4

Card 5

Front

What is the chemical to add to test for lipids (fats)? (1)

Back

Preview of the front of card 5
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