TLS Online TPP Program

#Question id: 1147


All the following statement(s) about cholera toxin are TRUE, except:

#Section 3: Genetics, Cellular and Molecular Biology
  1. it chemically modifies the Gαs protein.

  2. it is a G protein-coupled receptor.

  3. it prevents hydrolysis of bound GTP to GDP.

  4. it leads to continuous activation of adenylyl cyclase.

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TLS Online TPP Program

#Question id: 14925

#Section 5: Bioprocess Engineering and Process Biotechnology

Assuming the laminar flow across the filter, the rate of filtration (dVf/dt) can be expressed as a function of pressure drop tap, by the modified D'Arcy's equation as (where A is the area of filtering surface, K is the D'Arcy's filter cake permeability and L is the thickness of the filter cake) 


TLS Online TPP Program

#Question id: 14926

#Section 5: Bioprocess Engineering and Process Biotechnology

The effectiveness factor increases with the 

TLS Online TPP Program

#Question id: 14927

#Section 5: Bioprocess Engineering and Process Biotechnology

Calculate RQ value based on the analysis of the inlet air and the exhaust gas as follows. —Inlet Air: 02, 20.90%; CO2, 0.01% — Outlet Gas: 02, 18.30%; CO2, 2.90% 

TLS Online TPP Program

#Question id: 14928

#Section 5: Bioprocess Engineering and Process Biotechnology

 Escherichia coli grows with a doubling time of 0.5 h in the exponential growth phase. What is the value of the specific growth rate? 

TLS Online TPP Program

#Question id: 14929

#Section 5: Bioprocess Engineering and Process Biotechnology

Escherichia coli grows with a doubling time of 0.5 h in the exponential growth phase. How much time would be required to grow the cell culture from 0.1 to 10 kgdry cell m-3 

TLS Online TPP Program

#Question id: 14930

#Section 5: Bioprocess Engineering and Process Biotechnology

E. coli grows from 0.10 to 0.50 kg dry cell m-3 in 1 h. Assuming exponential growth during this period, evaluate the specific growth rate