TLS Online TPP Program

#Question id: 2093


Which of the following is transmembrane proteins?

#Section 3: Genetics, Cellular and Molecular Biology
  1. lipid-anchored membrane proteins

  2. integral membrane proteins

  3. peripheral membrane proteins

  4. extracellular matrix proteins

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TLS Online TPP Program

#Question id: 3262

#Section 3: Genetics, Cellular and Molecular Biology

In a population, the genotype frequencies are: f(A1A1)= 0.35; f(A1A2) = 0.30; f(A2A2) = 0.35; Which of the following statement is correct?

TLS Online TPP Program

#Question id: 14387

#Section 1: Engineering Mathematics

Given that A = [aij] is a square matrix of order 3x3 and IAI = -7, then the value of where Aij denotes the cofactor of element aij is 

TLS Online TPP Program

#Question id: 14525

#Section 1: Engineering Mathematics

It is given that  and  then value of f (- 2) is

TLS Online TPP Program

#Question id: 14242

#Section 5: Bioprocess Engineering and Process Biotechnology

Small food particles with diameter 10-2 mm and density 1.03 g cm-3 are suspended in liquid of density 1.00 g cm-3. The viscosity of the liquid is 1.25 mPa s. A tubular-bowl centrifuge of length 70 cm and radius 11.5 cm is used to separate the particles. If the centrifuge is operated at 10 000 rpm, estimate the feed flow rate at which the food particles are just removed from the suspension. ____________________

TLS Online TPP Program

#Question id: 14245

#Section 5: Bioprocess Engineering and Process Biotechnology

Ethanol is produced by anaerobic fermentation of glucose by Saccharomyces cerevisiae. For the particular strain of S. cerevisiae employed, the maintenance coefficient is 0.18 kg kg- 1 h- 1, Yxs is 0.11 kg kg-1, YPX is 3.9 kg kg-1 and µmax is 0.4 h-1.  It is decided to investigate the possibility of using Zymomonas mobilis bacteria instead of yeast for making ethanol. Z. mobilis is known to produce ethanol under anaerobic conditions using a different metabolic pathway to that employed by yeast. Typical values of Yxs are lower than for yeast at about 0.06 kg kg-1; on the other hand, the maintenance coefficient is higher at 2.2 kg kg -1 h -1. Ypx for Z. mobilis is 7.7 kg kg-l; µmax is 0.3 h- 1. Y’PS is maximum and equal to the theoretical yield when there is zero growth and all substrate entering the cell is used for maintenance activities. If ethanol is the sole extracellular product of energy-yielding metabolism, calculate mp for yeast?

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