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WorksheetsFood Tests
Total questions: 15
Worksheet time: 10mins
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 (a) 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- (a) 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
Carbohydrates are broken down by what type of Enzyme?
Proteases
Carbohydrase
Lipase
Fats are broken down by what enzyme?
Lipase
Carbohydrase
Protease
Bile emulsifies fat into droplets which increases its _______ ____, so that more enzymes can act on it at once.
(a)
Bile is secreted from the...?
Liver
Pancreas
Gallbladder
Stomach
Match the following the images to the correct Benedict's test result
No sugar (Just Benedict's)
low conc. Sugar
Medium conc. Sugar
High conc. Sugar
