Of the following amino acids, which 3 are most likely to be found on surface of a single protein. a) Arg b) Trp c) Cys d) Phe e) Leu f) Lys

31: Different amino acids are distinguished by a) the composition of their side chains, or ‘R-groups’ b) the location of their fatty acid group c) the location of their amino group d) their ability to form covalent t bonds with ions.

Which of the following link together amino acid units?A) Glycosidic bondsB) Disulfide bondsC) Peptide bondsD) Hydrogen bondsE) Ester linkages

sugar and phosphate in a polynucleotide backbone are covalently linked by what? a) N-glucosidic bond  b) phosphodiester bond  c) peptide bond  d) beta strand e) alpha helix

What reagent present in the protein sample buffer is important for breaking disulfide bonds? a) 2-mercaptoethanol O b) chloride ions O c) glycine O d) SDS

1. Which one of the following is NOT an important functional group or linkage in biomolecules? A) Phosphodiester B) Hemiketal C) Thiol D) Lipid E) Phosphoanhydride

What protein structure is represented in either panel of the figure above?   Question 11 options:   a)  Quaternary   b)  Secondary   c)  Tertiary   d)  Quinary   e)  Primary