WorksheetsFood tests
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which of the following tests for starch?
a)
Iodine
b)
Benedict's
c)
Biuret
d)
Emulsion
2.
Which of the following tests for protein?
a)
Iodine
b)
Benedicts
c)
Biuret
d)
Emulsion
3.
Which of the following tests for glucose?
a)
Iodine
b)
Benedicts
c)
Biuret
d)
Emulsion
4.
When starch is present iodine turns...
a)
purple
b)
blue-black
c)
orange
d)
brick red
5.
When protein is present Biuret turns...
a)
purple
b)
blue-black
c)
orange
d)
brick red
6.
When large amounts of glucose is present Benedicts turns...
a)
purple
b)
blue-black
c)
brick-red
d)
green
7.
A negative test for starch will cause Iodine to stay...
a)
orange/red
b)
blue
c)
black
d)
brick red
8.
A negative test for glucose will cause Benedicts to stay...
a)
brick red
b)
blue
c)
black
d)
orange
9.
How do you test for lipids?
a)
By using Ethanol and water
b)
By using Benedicts solution
c)
By using Iodine
d)
By using Biuret test
10.
What is a positive result for the lipid emulsion test?
a)
milky white colour
b)
clear
c)
yellow
d)
green
100 %
