Food Tests

Which test is used to detect the presence of reducing sugars (i.e. small sugars like glucose)?

• Biuret test

• Benedict's test

• Bartholomew's test

• Bronchial test

Does the Benedict's test require heating the sample in a water bath? 

• Yes

• No

What does Iodine test for?

• Glycogen

• Lipids

• Starch

• Proteins

Iodine solution is used to test for the presence of starch. If starch is present, which colour change takes place?

• Orange to Blue/Black

• Blue to lilac/ Purple

• Blue to Brick Red

• Orange to Pink

To test for proteins we can use _______ solution.

Biuret reagent can be used to test for the presence of proteins. If protein is present, what colour change takes place?

• Orange to Blue/Black

• Blue to lilac / purple

• Blue to brick red

• Orange to Pink

What is the test for Lipids?

• Biuret Test

• Emulsion test

• Iodine test

• Benedict's test

If the test substance contains lipids, a milky-_______ emulsion forms.

In this experiment, you must put your test tubes into a hot water bath

• Benedict's test

• Biuret test

• Iodine test

• Ethanol Emulsion test

The building blocks of proteins are...?

• amino acids

• sugars

• fatty acids

• carbohydrates