6.    In the biochemical standard state, the concentration of proton isa.    0 Mb.    1 Mc.    0.7 Md.    10-7 Me.    7 M

21.    A reaction with a ______ ∆H and a ______ ∆S, will always be spontaneous.a.    Positive, positiveb.    Positive, negativec.    Negative, positived.    Negative, negativee.    None of the above

37.    Which of the following does not form a useful buffer?a.    Equal amount of acetic acid and sodium acetateb.    Equal amount of oxalic acid and sodium oxalatec.    Equal amount of formic acid and sodium formated.    Equal amount of succinic acid and sodium succinatee.    Equal amount of hydrochloric acid and sodium chloride

33.    Which one of the following compounds would partition in the interior of oleic acid (C17H33COOH) micelles rather than in their surrounding water?a.    +H3NCH2COO-b.    ammonium sulphatec.    methaned.    sodium chloride

36.    Alanine contains a small nonpolar side chain.  The tetrapeptide of alanine would be ____ soluble than alanine in aqueous solution at pH 7.a.    moreb.    lessc.    equally

An organization’s values can influence how employees behave and make decisions in the workplace.

14.    A salt bridge can be formed betweena.    GLU and LYSb.    TYR and SERc.    LYS and ARGd.    ASP and GLUe.    LEU and ILE

29.    Which of the following does not distinguish the chemists’ and the biochemists’ standard states?a.    The reference concentration of pure waterb.    The reference concentration of hydrogen ionsc.    The reference concentration of ionized speciesd.    The temperature and pressure of the standard states

26.    Which of the following have units of energy?a.    Enthalpyb.    Free energyc.    Workd.    a) and b)e.    a), b), and c)

18.    What is the net charge of the peptide ARG-GLU-ALA-LYS-ASP at pH 7?a.    -2b.    -1c.    0d.    +1e.    +2