Exam 3: Protein I: Composition and Structure

L-amino acids are the most common form. L signifies

Which one of the following factors is considered to be the major force which leads to conformational stability of globular proteins?

Identify in the following list the chemical bond responsible for forming the primary structure of proteins:

Cysteine can be converted to cystine by

Which of the following amino acids is most likely to be found on the interior of a protein?

Individual amino acids in protein hydrolysates may be effectively separated from each other by

What is the reason for the planar geometry of the peptide bond in proteins?

Which of the following peptides would be least soluble in aqueous solution?

Which amino acid residue is least likely to be found on surfaces of globular proteins in aqueous solution?

Information on which of the following features of a protein can be obtained by means of optical rotary dispersion?

amino acids are classified according to the nature of their side chain. All of the following amino acids are correctly classified EXCEPT

To obtain information about the precise shape of a globular protein an investigator should perform

The following protein separation techniques take advantage of the charge differences between various proteins EXCEPT for:

An amino acid found in large amounts in collagen is

At their isoelectric point proteins have:

Which of the following amino acids predominates in the collagen molecule?

Hemoglobin A differs from hemoglobin S in having two more anionic groups (both hemoglobins have a molecular weight of approximately 67,000). Which one of the following separation methods is most likely to distinguish between these two

Denaturation of protein

Which of the following is responsible for the maintenance of protein secondary structure?

At their isoelectric point proteins have