Required Practical: Food Tests (AQA GCSE Biology Combined Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
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Practise the cards
10 cards from this deck
Nutrient detected by Benedict's test
Nutrient detected by Benedict's test
Reducing sugars
Benedict's test positive result colour change
Benedict's test positive result colour change
Blue to brick-red or orange
Benedict's test temperature and time
Benedict's test temperature and time
75°C for 5 minutes
Nutrient detected by iodine test
Nutrient detected by iodine test
Starch
Iodine test positive result colour change
Iodine test positive result colour change
Brown to blue-black
Nutrient detected by Biuret test
Nutrient detected by Biuret test
Protein
Biuret test positive result colour change
Biuret test positive result colour change
Blue to purple
Nutrient detected by emulsion test
Nutrient detected by emulsion test
Lipids
Emulsion test positive result appearance
Emulsion test positive result appearance
Cloudy white emulsion
Two chemicals used in emulsion test (in order)
Two chemicals used in emulsion test (in order)
Ethanol then distilled water