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Unit III - Biochemistry
Test Description: Biochem
Instructions: Answer all questions to get your test result.
1) What element do all organic compounds have in common?
A
Potassium
B
Carbon
C
Nitrogen
D
Phosphorus
2) Which is the pH of an acid?
A
9
B
7
C
8
D
6
3) Which is the pH of a base?
A
7
B
5
C
8
D
6
4) Atoms of the same elements with different numbers of neutrons are
A
molecules
B
compounds
C
isotopes
D
ions
5) Lipids are made of
A
C, H, O and N
B
C, H and O in a 1:2:1 ratio
C
mostly C and H with some O
D
C, H, O, N and P
6) Carbohydrates are made of
A
mostly C and H with some O
B
C, H, O, N and P
C
C, H and O in a 1:2:1 ratio
D
C, H, O and N
7) Proteins are made of
A
mostly C and H with some O
B
C, H, O, N and P
C
C, H and O in a 1:2:1 ratio
D
C, H, O and N
8) Nucleic acids are made of
A
C, H, O, N and P
B
C, H, O and N
C
mostly C and H with some O
D
C, H and O in a 1:2:1 ratio
9) A function of a lipid.
A
building muscle
B
energy use
C
energy storage
D
structural support
10) A function of a nucleic acid.
A
cell membrane
B
energy storage
C
speed reactions
D
transmit genetic information
*select an answer for all questions
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