TLS Online TPP Program

#Question id: 3678


Which of the following protein can break covalent bonds?

#Section 3: Genetics, Cellular and Molecular Biology
  1. helicase

  2. primase

  3. SSB

  4. DNA gyrase

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TLS Online TPP Program

#Question id: 14292

#Section 5: Bioprocess Engineering and Process Biotechnology

Consider the scale up of a fermentation from a 10L to 10000L while maintaining geometric similarity. Agitation speed was maintained at 500 rpm in the 10L fermenter. If scale up is done based on constant tip speed, then the agitation speed in the larger reactor should be 
rpm. 

TLS Online TPP Program

#Question id: 14225

#Section 5: Bioprocess Engineering and Process Biotechnology

A fermenter is maintained at 35⁰C by water circulating at a rate of 0.5 kg s^-1 in a cooling coil inside the vessel. The inlet and outlet temperatures of the water are 8⁰C and 15⁰C respectively. The length of the cooling coil is increased by 50%. In order to maintain the same fermentation temperature, the rate of heat removal must be kept the same. Determine the new cooling-water flow rate and outlet temperature by carrying out the following calculations. The heat capacity of the cooling water can be taken as 4.18 kJ kg^- 1 o C^- 1. From a steady-state energy balance on the cooling water, calculate the rate of cooling with the original coil ___________________.

TLS Online TPP Program

#Question id: 14171

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:

In a batch reactor of volume 10^5 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the concentration and total amount of glucose in the nutrient medium?

TLS Online TPP Program

#Question id: 2108

#Section 2: General Biology

Which of the following is TRUE regarding lipid-anchored membrane proteins?

TLS Online TPP Program

#Question id: 5845

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following statements is false?  In vitro, the strand-exchange reaction: