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Pre-Lab Questions
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1
The most basic unit of matter is
A)energy.
B)an element.
C)a molecule.
D)a cell.
2
Which number would represent a neutral pH?
A)100
B)0
C)7
D)14
3
The building block of a protein is
A)an amino acid.
B)a monosaccharide.
C)a lipid.
D)starch.
4
The building block of a carbohydrate is
A)glycerol.
B)an amino acid.
C)fatty acids.
D)a monosaccharide.
5
The test for starch uses which substance?
A)IKI (iodine solution)
B)Benedict's solution
C)Sudan IV dye
D)Biuret reagent
6
A positive test for lipids results in a
A)pinkish color change.
B)yellow color change.
C)translucent stain.
D)blue to red color change.
7
Which of the following pH numbers would represent the strongest acid?
A)1
B)5
C)7
D)14





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