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TLS Online TPP Program

#Question id: 8699

Use the figure to answer the following question.

If the figure is an accurate depiction of relatedness, then which of the following should be an accurate statement?

#SCPH06 I Botany
  1. If all species depicted here make up a taxon, this taxon is monophyletic.
  2. The species present at position 4 is ancestral to species E, but not species D.
  3. Species C is more closely related to species B than D is to B
  4. The species present at position 3 is ancestral to C, D, and E.
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TLS Online TPP Program

#Question id: 14292

#SCPH05 I Biotechnology

Consider the scale up of a fermentation from a 10L to 10000L while maintaining geometric similarity. Agitation speed was maintained at 500 rpm in the 10L fermenter. If scale up is done based on constant tip speed, then the agitation speed in the larger reactor should be 
rpm. 
TLS Online TPP Program

#Question id: 14293

#SCPH05 I Biotechnology

Scale up of a fermenter is done based on constant impeller tip speed. If the diameter of the impeller is increased by 10-fold, the agitator speed will: 
TLS Online TPP Program

#Question id: 14293

#SCPH05 I Biotechnology

Scale up of a fermenter is done based on constant impeller tip speed. If the diameter of the impeller is increased by 10-fold, the agitator speed will: 
TLS Online TPP Program

#Question id: 14294

#SCPH05 I Biotechnology

What will be the generation time of a culture with a specific growth rate constant of 0.01 min^-1? 
TLS Online TPP Program

#Question id: 14294

#SCPH05 I Biotechnology

What will be the generation time of a culture with a specific growth rate constant of 0.01 min^-1? 
TLS Online TPP Program

#Question id: 14295

#SCPH05 I 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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