bonds
Problem Details
Chemistry, Chemistry of Biological and Bioactive Organic Comp
Year 2
bonds
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Whichforce contributes least to the overall conformation of the protien?
a.Covalent bonds
b. Hydrogen bonds
c. Ionic bonds
d. Hydrophobic interactions
Which amino acid residue when part of a polypeptide can be a hydrogen bond doner to water at pH 7.0?
a.Proline
b. Isoleucine
c. Asparagine
d. Aspartic acid
Alpha Helices are stabilized primarily by:
a. Hydrogen bonds between the main chain peptides bonds
b. Electrostatic interactions between R groups
c. Hydrophobic interactions between alpha-carbons of the main chain
d. Hydrogen bonding between the R groups
The folding of protiens in aqueous solution is driven primarily by:
a. A decrease in the entropy of the peptide upon folding
b. An increase in the entropy of the solvent upon folding
c. A decrease in the enthalpy of the peptide upon folding
d. An increase in the enthalpy of the solvent upon folding
The amino acid residue most likley to be found in a beta turn is:
a. Glycine
b. Alanine
c. Valine
d. Glutamic acid
The characteristic time for atomic vibration in a protien is:
a. milliseconds
b. Microseconds
c. Nanoseconds
d. Picoseconds
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