TLS Online TPP Program

#Question id: 16002


Accumulation of lactate leads to

#Section 6: Plant, Animal and Microbial Biotechnology
  1. increase in pH
  2. no change in pH
  3. reduction in the pH of culture hence loss of cell viability
  4. no loss of cell viability
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TLS Online TPP Program

#Question id: 14742

#Section 5: Bioprocess Engineering and Process Biotechnology

Gel chromatography is used for hormone separation. A pilot-plant scale gel chromatography column packed with sephacryl resin is used to separate two hormones, A and B. The column is 5 cm in diameter and 30 cm in height: V, = 1.9x 10-4m3, Wr = 3x10-3m3 /kg dry sephacryl, ps =1.25 x 103 kg/m3 . The partition coefficients are kpA =0.38 and kpB= 0.15. If the eluting flow rate is 0.7 I/h, what is the retention time for each hormone? 

TLS Online TPP Program

#Question id: 14743

#Section 5: Bioprocess Engineering and Process Biotechnology

for the fermenter with the given data. 
Air is sparged with 0.4 vvm, it is equipped with two sets of impellers and a flat-blade turbine with four baffles. calculate power, P 

TLS Online TPP Program

#Question id: 14744

#Section 5: Bioprocess Engineering and Process Biotechnology

For production of an enzyme used for synthesis of a sun protection lotion, the required kinetic data and constants are: 
vmax = 2.3 mmol.m-3 s-1 Km = 8.9 mmol.-1 So = 12 mmol1- 
Find the reaction time for 95% conversion of raw material 

TLS Online TPP Program

#Question id: 14745

#Section 5: Bioprocess Engineering and Process Biotechnology

heat exchanger, one transfer unit means 

TLS Online TPP Program

#Question id: 14746

#Section 5: Bioprocess Engineering and Process Biotechnology

During cultivation of microorganism in a fermenter, various parameters are controlled by appropriate mechanism, match the following 

TLS Online TPP Program

#Question id: 14747

#Section 5: Bioprocess Engineering and Process Biotechnology

Mechanism of separation of contaminants present in air by fibrous media are.