4. Biomolecules
Proteins
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- Multiple Choice
The primary building blocks (monomers) of proteins are:
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Which two functional groups are always found in amino acids?
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What term is used for an amino acid chain that has greater than 50 covalently linked amino acids?
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The specific amino acid sequence in a protein is its:
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What two functional groups are bound to the central carbon of every free amino acid monomer?
a. An R-group and a hydroxyl group
b. An N—H group and a (C═O) group
c. An amino group and a hydroxyl group
d. An amino group and a carboxyl group
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What type of bond is directly involved in the formation of an α-helix?
a. Peptide bonds between amino acid residues
b. Hydrogen bonds between amino acid residues
c. Van der Waals interactions between nonpolar residues
d. Disulfide bonds between cysteine residues
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What type of information is used to direct different polypeptides to fold into different shapes?
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The structural level of a protein least affected by a disruption in hydrogen bonding is the
a. Primary level.
b. Secondary level.
c. Tertiary level.
d. Quaternary level.
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