TLS Online TPP Program

#Question id: 3927


An operon is __

#Section 3: Genetics, Cellular and Molecular Biology
  1. a set of genes whose transcription is controlled by a single promoter

  2. the site of repressor binding

  3. a protein that activates the transcription of a whole class of genes

  4. a multisubunit complex responsible for the splicing of exons

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TLS Online TPP Program

#Question id: 27606

#Section 5: Bioprocess Engineering and Process Biotechnology

In a process, CO2 and water is given as feed and the mass fraction is 0.25 and 0.75 respectively. The feed stream is 5 Kg/s and the product stream is 10 Kg/sec.
A. What is the feed stream of CO2 in Kg/s?

TLS Online TPP Program

#Question id: 27908

#Section 5: Bioprocess Engineering and Process Biotechnology

The dynamic technique is based on the

TLS Online TPP Program

#Question id: 27909

#Section 5: Bioprocess Engineering and Process Biotechnology

A 20-1 stirred fermenter containing a Bacillus thuringiensis culture at 30°C is used for production of microbial insecticide, ka is determined using the dynamic method. Air flow is shut off for a few minutes and the dissolved-oxygen level drops; the air supply is then re-connected. When steady state is established, the dissolved-oxygen tension is 78% air saturation. The following results are obtained. Estimate ka.

TLS Online TPP Program

#Question id: 27910

#Section 5: Bioprocess Engineering and Process Biotechnology

The rate of oxygen tranfer is given by equation 

TLS Online TPP Program

#Question id: 27911

#Section 5: Bioprocess Engineering and Process Biotechnology

The smaller the size of the bubble the is the value of KLa

TLS Online TPP Program

#Question id: 27912

#Section 5: Bioprocess Engineering and Process Biotechnology

"Power required for turbulent flow is independent of the viscosity of the fluid but proportional to fluid density", this statement is applicable to which type of regime?