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Biomolecules tests

Test for starch, fat, reducing sugar, protein

TermDefinition
Qualitative To test whether something is present or not
Quantitative To test the amount of something that is present
What sources of carbs can you use to test for starch? Bread Potato
What control substance is used for starch test? Water
What stain is used in starch test Iodine
What colour will iodine turn when starch is present? Blue/black
What source of fat can you use to test for lipids? Butter Oil
What do you do to test for lipids? Rub oil into brown paper and leave to dry
What source of reducing sugar can you use when testing for sugar Glucose solution Non diet soda
What solution is added to the test tubes when testing for sugar Benedict’s solution
How do you maintain the temp of the water bath? Set the water bath to the optimal temperature
What colour will the glucose test tube turn? From blue to orange/red
What source of protein do you use to test for protein? Egg whites
What control do you use when testing for protein? Rice
What solution is shaken into the test tubes when testing for protein? Biuret solution
What colour will the protein turn? From blue to purple
Created by: EObrienHart
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