TLS Online TPP Program

#Question id: 1591


Which of the following is not true about helper T cells?

#SCPH01 Biochemistry
  1. They function in cell-mediated and humoral responses.

  2. They recognize polysaccharide fragments presented by class II MHC molecules.

  3. They bear surface CD4 molecules.

  4. They are subject to infection by HIV.

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TLS Online TPP Program

#Question id: 14285

#SCPH05 I Biotechnology

Match the transport process with appropriate time constants given below 
Transport process                       time constants
1. Oxygen transfer                     p. V/Q
2. Heat transfer                      q. 4V(1.5ND3)
3. Flow                                     r. VpCp/UA
4. Mixing                              s. 1/KLa 

TLS Online TPP Program

#Question id: 14286

#SCPH05 I Biotechnology

 When a liquid of density 1200kg/m3 and viscosity 0.01 kg m^-1s^-1 flows through a 1 cm ID pipe at 0.2m/s, the flow is referred as a 

TLS Online TPP Program

#Question id: 14286

#SCPH05 I Biotechnology

 When a liquid of density 1200kg/m3 and viscosity 0.01 kg m^-1s^-1 flows through a 1 cm ID pipe at 0.2m/s, the flow is referred as a 

TLS Online TPP Program

#Question id: 14287

#SCPH05 I Biotechnology

A chemostat is run with a feed rate of llitre/h when the volume of the reactor is also 1 litre. At steady state the doubling time of the cells in the chemostat is.....   h. 

TLS Online TPP Program

#Question id: 14287

#SCPH05 I Biotechnology

A chemostat is run with a feed rate of llitre/h when the volume of the reactor is also 1 litre. At steady state the doubling time of the cells in the chemostat is.....   h. 

TLS Online TPP Program

#Question id: 14288

#SCPH05 I Biotechnology

During a batch culture experiment the following data was obtained 

What will be the product yield (g) per gram of substrates?