9SCIE - Energy for Life
Finn Le Sueur
2024
Copy this table into your book:
| Chemical used for Test | Colour (if present) | Colour (if absent) | |
|---|---|---|---|
| Starch | |||
| Protein | |||
| Lipid | |||
| Glucose |
Method: Add a few drops of iodine to the solution being tested Results: Iodine goes black if starch is present
Method: Add a few drops of
| Chemical used for Test | Colour (if present) | Colour (if absent) | |
|---|---|---|---|
| Starch | Iodine Solution | Black / Purple | Yellow/Brown |
| Protein | Biuret Solution | Light Purple | Blue |
| Lipid | Ethanol | Cloudy White Precipitate | No Precipitate |
| Glucose | Benedicts Solution | Orange/Red | Stays Blue |