biological tests
- Created by: kierasanghera
- Created on: 23-05-16 08:18
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- Biological tests
- Iodine test
- for startch
- tested using iodine solution
- turns blue/black in the presence of startch
- benedicts
- test to look for reudcing sugar
- hear with benedicts reagent
- if positive will turn from blue into a brick red precipitate
- emulsion test
- used to test for lipids
- use 2cm^3 of ethanol
- equal amount of water added
- positive:milky white emulsion
- non reducing sugars test
- done reducing sugar test first with a negative result
- add 2cm^3 of hydrochloric acid
- neutralise with sodium hydroxide
- add benedicts and heat
- brick red precipitate formed
- Iodine test
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