TLS Online TPP Program

#Question id: 1885


Maple bark stripper's disease is a hypersensitivity largely affecting the:

#Section 2: General Biology
  1. Skin

  2. Kidneys

  3. Nervous system

  4. Lung

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TLS Online TPP Program

#Question id: 14277

#Section 5: Bioprocess Engineering and Process Biotechnology

Lactobacillus casei is propagated under essentially anaerobic conditions to provide a starter culture for manufacture of Swiss cheese. The culture produces lactic acid as a by-product of energy metabolism. The system has the following characteristics:

                                                                 

 

A stirred fermenter is operated in fed-batch mode at quasisteady state with a feed flow rate of 4 m3 h-1 and feed substrate concentration of 80 kg m-3. After 6 h, the liquid volume is 40 m3. What mass of cells is produced after 6 h fed-batch operation?

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TLS Online TPP Program

#Question id: 14278

#Section 5: Bioprocess Engineering and Process Biotechnology

Stirrer has a power number (Np) 10. If the stirrer speed (N) is 1s^-1, its diameter D=1m and the density of the medium is 1000 kg/m^3, the ungassed power input (P) in watts is 

TLS Online TPP Program

#Question id: 14279

#Section 5: Bioprocess Engineering and Process Biotechnology

Growth yield of mDicrobes is defined as

TLS Online TPP Program

#Question id: 14280

#Section 5: Bioprocess Engineering and Process Biotechnology

In microbial cultivation, the expression for product synthesis

TLS Online TPP Program

#Question id: 14281

#Section 5: Bioprocess Engineering and Process Biotechnology

cells are grown in a CSTR a steady state at two dilution rates 0.1 h^-1 and 0.5h^-1 and the steady state concentrations are as follows: 


if the inlet substrate concentration is 20 g/I, the cells follow monod growth kinetics and product formation kinetics is modelled as a both growth associated and non growth associated kinetics given by the equation then answer the following questions, the best estimate of maximum specific growth rate is: 

TLS Online TPP Program

#Question id: 14282

#Section 5: Bioprocess Engineering and Process Biotechnology

The oxygen transfer rate in an aerobic fermentation process does not depend on the