Core Practical: Food Tests (Edexcel GCSE Biology): Flashcards
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Reagent for starch test
Reagent for starch test
Iodine solution
Positive starch test colour
Positive starch test colour
Blue-black
Reagent for reducing sugars
Reagent for reducing sugars
Benedict's solution
Positive reducing sugars colour
Positive reducing sugars colour
Blue to cloudy orange or brick red
Benedict's test water bath temp.
Benedict's test water bath temp.
95°C
Protein test reagent name
Protein test reagent name
Biuret reagent
Positive protein test colour
Positive protein test colour
Mauve or purple
Lipid test reagent
Lipid test reagent
Ethanol
Positive lipid test appearance
Positive lipid test appearance
Milky-white emulsion
Name of lipid test
Name of lipid test
Emulsion test
Nutrients in beef
Nutrients in beef
Proteins and lipids
Nutrients in vegetable oil
Nutrients in vegetable oil
Lipids
Nutrients in rice
Nutrients in rice
Starch
Nutrients in breakfast cereal
Nutrients in breakfast cereal
Starch, reducing sugars, and lipids
Safety gear for potassium hydroxide
Safety gear for potassium hydroxide
Eye protection