The active site of lysozyme contains two amino acid residues essential for catalysis: Glu35 and Asp52. The pKa values of the carboxyl side chains of these residues are 6.3 and 4.5, respectively. What is the pH optimum of lysozyme based on the plot of pH versus rate, below? What is the ionization state (protonated or deprotonated) of each residue at this pH optimum? Which of these residues, either Glu-35 or Asp-52 act as a base in the catalytic mechanism, consistent with these data.

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Uranium can supply energy for the worlds electricity without admitting harmful greenhouse gases which of these statements best describes an outcome of uranium mining