Exam 19: Proteins

When proteins are hydrolyzed,amide bonds are cleaved.

Tertiary structures of proteins result from R-group interactions.Which of the following is not a R-group interaction?

What bonding forces are responsible for the secondary structure of a protein?

Which of the following structural features of amino acids is most responsible for differences in properties of proteins?

Nursing mothers should not take medications just before breast feeding.

Proteins can be produced by using any one of the naturally occurring amino acids.

Which of the following is the best representation of the zwitterion for glycine in a neutral aqueous solution?

The isoelectric point of an amino acid is

Which of the following would not denature an egg?

Although the common amino acids all have accepted standard names,they can also be named using the IUPAC organic chemical nomenclature system.Below is the structure for the simplest amino acid,glycine.What would be its IUPAC name?

The figure below shows a portion of what type of secondary protein structure?

A nursing mother comes to you wanting to take something for minor arthritis pain.Which drug would you not recommend her to use?

Denaturation is usually easily reversible.

The amino acid shown below correctly labeled.

Of the many sulfur-containing amino acids,cysteine is the only one that can not form disulfide bridges.

The formation of a disulfide bond between two cysteine molecules requires oxidation.

The biologically important peptides are formed from alpha amino acids.

All twenty common amino acids contain at least one chiral carbon.

A zwitterion is dipolar;it possesses a positive end and a negative end.

Peptide bonds usually are not cleaved in denaturation.