#Question id: 1090
#Section 3: Genetics, Cellular and Molecular Biology
Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of ions on opposite sides of the membrane?
#Question id: 14295
#Section 5: Bioprocess Engineering and Process Biotechnology
Pseudomonas methylotrophus is used to produce single-cell
protein from methanol in a 1000 m3 pressure-cycle airlift fermenter.
The biomass yield from substrate is 0.41 g g- 1, KS is
0.7 mg l- 1, and the maximum specific growth rate is 0.44 h- 1.
The medium contains 4% (w/v) methanol. A substrate conversion of 98% is
desirable. The reactor may be operated either in batch or continuous mode. If
operated in batch, an inoculum of 0.01% (w/v) is used and the downtime between
batches is 20 h. If operated continuously, a downtime of 25 d is expected per
year. Neglecting maintenance requirements, compare the annual biomass
production from batch and continuous reactors?
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#Question id: 15756
#Section 6: Plant, Animal and Microbial Biotechnology
#Question id: 16029
#Section 6: Plant, Animal and Microbial Biotechnology
#Question id: 14362
#Section 5: Bioprocess Engineering and Process Biotechnology