1. If you wished to obtain a pure culture that could degrade prairie cordgrass and use it as a carbon and energy source, how would you proceed? (4 points) 2. Would you consider the following growth medium “a chemically defined medium”? Why or why not? (2 points) The medium contains (per liter): 0.1 g nitrilotriacetic acid. 1-ml of FeCl3 solution (0.03%), 0.05 g CaC12-2H20, 0.1 g MgS04.7H20, 0.01 g NaCl, 0.01 g KCl, 0.3 g NHCl, 1.8 g of 85% HPOg 0.005 g methionine, 0.005 g yeast extract, 0.010 g casamino acids, and 0.5 g glucos