Food Tests 0.0 / 5 ? BiologyBiological moleculesASAQA Created by: LucyLaaCreated on: 23-06-17 11:33 How do you test for proteins? Biuret Reagent (blue to purple/red) 1 of 8 How do you test for reducing sugars? Benedict's Test 2 of 8 In Benedict's test, what would you expect to see with glucose? Blue solution to Brick-red precipitate 3 of 8 How do you test for non-reducing sugars? Heat substance in dilute HCl, neutralise it with NaHCO3 and carry out Benedict's Test. 4 of 8 What is the iodine test used for? Starch 5 of 8 What colour does the iodine test go, if the substance is present? Brown-orange -> blue-black 6 of 8 How do you carry out the Emulsion Test? Add substance to ethanol, shake until dissolved and then pour into water. 7 of 8 What would a positive result of the Emulsion Test be? A milky emulsion (white precipitate) 8 of 8
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