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Digestion
Test Description: First test
Instructions: Answer all questions to get your test result.
1) Organic matter made of:
A
Hydrogen only
B
Hydrogen only
C
Carbon of plant or animal origin
D
Nitrogen only
2) Fehling test identifies the presence of
A
Cooked starch
B
All choices are correct
C
Reducing sugars
D
All types of sugars
3) Iodine test identifies the presence of :
A
Lipids
B
Protein
C
Cooked starch
D
Reducing sugars
4) Biuret test identifies the presence of:
A
Cooked starch
B
Lipids
C
Simple sugars
D
Proteins
5) Biuret test is performed
A
All choices are correct
B
With heating
C
At very high temperature
D
Without heating
6) If we put few drops of iodine test on a slice of bread, the obtained result is:
A
Dark blue color appears
B
None of the choices
C
Violet color appears
D
Brown orange color appears
7) If a biuret test is performed on a food containing proteins, the expected result is:
A
Violet color
B
None of the choices is correct
C
Dark blue color
D
Brick red precipitate
8) When we rub certain food on a paper, translucent spots appear. This indicates that this food contains
A
Cooked starch
B
All choices are correct
C
Proteins
D
Lipids
9) following sugar(s) is (are) reducing sugar(s):
A
All choices are correct
B
Glucose
C
Maltose
D
Fructose
10) Bread is a complex food since it is
A
Composed of starch only
B
None of the choices is correct
C
Composed of protein only
D
Composed of different matter and substances
*select an answer for all questions
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