4. Biomolecules

The primary building blocks (monomers) of proteins are:

Which two functional groups are always found in amino acids?

What term is used for an amino acid chain that has greater than 50 covalently linked amino acids?

The specific amino acid sequence in a protein is its:

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

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

What type of information is used to direct different polypeptides to fold into different shapes?

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.