#Question id: 28113
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 14330
#Section 5: Bioprocess Engineering and Process Biotechnology
A radioactive isotope decays at a rate proportional to the
amount of isotope present. If the concentration of isotope is C (mg l-I),
its rate of decay is:
A solution of the isotope 32p is used to
radioactively label DNA for hybridisation studies. The half-life of 32p
is 14.3 days. According to institutional safety requirements, the solution
cannot be discarded until the activity is 1% its present value. How long will
this take?____________________
#Question id: 18496
#Section 2: General Biology
Calculate △G°ʹ for the reaction shown if the mass action ratio, Q, is 5.3 × 102 M-1 and △G is 46 kJ/mol at a temperature of 298 K. (R = 8.315 J/K-mol)
ADP + Pi ⇌ ATP_______ kJ/mol.
#Question id: 188
#Section 2: General Biology
Active holoenzymes are formed from ________ in the presence of ________.
#Question id: 14168
#Section 4: Fundamentals of Biological Engineering
Corn-steep liquor contains 2.5 % invert sugars and 50% water; the rest can be considered solids. Beet molasses containing 50% sucrose, 1% invert sugars, 18% water and the remainder solids, is mixed with corn-steep liquor in a mixing tank. Water is added to produce a diluted sugar mixture containing 2% (w/w) invert sugars. 125 kg corn-steep liquor and 45 kg molasses are fed into the tank.
What is the concentration of solids in the final mixture?