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Chapter Exam
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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
A change in the identity of one amino acid in a protein can have profound effects on its structure and function.
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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