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