Tests 0.0 / 5 ? BiologyAll tests in Biology GCSEGCSEAQA Created by: HarryCreated on: 13-05-14 17:23 How would you test for glucose? Add benedicts reagent and heat --> colour change from blue to brick red 1 of 5 How would you test for starch? Add iodine --> colour change from orange to blue/black 2 of 5 How would you test for protein? (biuret test) Add a few cm of NaOH + CuSO4 --> colour change from blue to lilac 3 of 5 How would you test for enzymes? Water bath at a range of temperatures --> denatures above 40 degree and is inactivated at lower temps. 4 of 5 How would you test a leaf for starch? Boil in water for 2 min, turn off bunsen, boil leaf in alcohol until white, dip in water, lay out on til + add iodine 5 of 5
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