Biuret Test, Benedict Test and Indophenol Test
Videos and experiments that are suitable for Biology. Biuret test to test for proteins. Benedict Test for Reducing Sugars and Non-Reducing Sugars and Indophenol Test for Vitamin C.
Biuret Test for Proteins
Demonstration of the biuret test for proteins.
A color change of blue to purple is a positive result to show that protein is present.
Benedict Test for Reducing Sugars
Test detecting the presence of glucose (a reducing sugar). An orange/brick-red color is a positive result to show that glucose is present.
Benedict Test for Non-Reducing Sugars
The acid is used to breakdown the sucrose (a non-reducing sugar) into glucose (a reducing sugar) and you add the sodium hydroxide to neutralise the acid.
Then we use the Benedict Test for reducing sugar.
Indophenol Test for Vitamin C
Indophenol is an indicator that turns colorless in the presence of vitamin C. The fewer drops of juice you need for the color change, the higher the vitamin C content in the juice
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.