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Post-Test
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1
Which of the following is not a principle macromolecule used to build cells?
A)Crystals
B)Carbohydrates
C)Lipids
D)Proteins
2
The largest carbohydrate from the following list is ____________________.
A)sucrose
B)fructose
C)glucose
D)glycogen
3
Amino acids are the subunits that make up
A)carbohydrates.
B)lipids.
C)proteins.
D)nucleic acids.
4
The combining of macromolecule subunits that results in the removal of water is
A)denaturization.
B)catalysis.
C)hydrolysis.
D)dehydration.
5
One chain of a DNA double helix contains the sequence CTAACG. The corresponding sequence on the other chain in the double helix would be
A)CTAACG.
B)TCGGTA.
C)GATTGC.
D)GCAATC.
6
A polymer is a molecule consisting of a long chain of similar subunits.
A)True
B)False
7
Most animal fats are saturated and most plant fats are unsaturated.
A)True
B)False
8
A special class of ___________ called enzymes is needed to facilitate the positioning of molecules during chemical reactions.
A)carbohydrates
B)proteins
C)lipids
D)nucleic acids
9
The covalent bond that links two _____________ together is called a peptide bond.
A)monosaccharides
B)nucleotides
C)amino acids
D)fatty acids
10
There are 20 common kinds of amino acids that differ from one another by their
A)functional R groups.
B)amino groups.
C)H atoms.
D)carboxyl groups.
11
The sequence of amino acids of a protein is its ___________ structure.
A)primary
B)secondary
C)tertiary
D)quaternary
12
The ______________ bonds within the secondary structure of a protein can fold it into coils or sheets.
A)hydrogen
B)covalent
C)ionic
D)All of the above
13
The final three-dimensional shape of a protein is known as the ___________ structure.
A)primary
B)secondary
C)tertiary
D)quaternary
14
A 5-carbon sugar, a phosphate group, and an organic nitrogen-containing base makes up a subunit of nucleic acids known as
A)an amino acid.
B)a monosaccharide.
C)a fatty acid.
D)a nucleotide.
15
There is only one type of nucleic acid, which is DNA.
A)True
B)False
16
Chaperone proteins help newly produced proteins to fold properly.
A)True
B)False
17
Chitin, cellulose, and starch are all polymers of
A)sucrose.
B)glucose.
C)fructose.
D)glycogen.
18
Fatty acids that contain double bonds between one or more pairs of carbon atoms are
A)unsaturated.
B)saturated.
C)cholesterol.
D)sucrose.
19
Which of the following is not a lipid?
A)Cholesterol
B)Steroids
C)Wax
D)Cellulose
20
The sequence of nucleotides in DNA specifies the _____________ of proteins.
A)amino acid sequence
B)secondary structure
C)tertiary structure
D)quaternary structure





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