TLS Online TPP Program

#Question id: 2010


Which of the following might be a child with Brutonʹs disease?

#Section 2: General Biology
  1. baby girl Denise, with low level of antibody response to streptococcal infection

  2. baby boy John, with immature T cells, missing CD4 receptors

  3. baby boy Jeff, with no plasma cells following infection by bacterial pneumonia

  4. baby girl Susan, with no evidence of a thymus gland

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TLS Online TPP Program

#Question id: 19465

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

In microscopy histological samples are often stained with which basic dye

TLS Online TPP Program

#Question id: 19483

#Section 4: Fundamentals of Biological Engineering

Propane (C3H8) burns in this reaction:
C3H8 + 5O2 = 4H2O + 3CO2
If 200 g of propane is burned, how many g of H2O is produced?

TLS Online TPP Program

#Question id: 19484

#Section 4: Fundamentals of Biological Engineering

Estimate the degree of reduction of Methane, Glucose and Ethanol?

TLS Online TPP Program

#Question id: 19485

#Section 4: Fundamentals of Biological Engineering

The growth of S.cerevisiae on glucose under anaerobic conditions can be described by the following reaction:
C6H12O6 + aNH3 → 0.59 CH1.64N0.16O0.52 (biomass) + 0.43 C3H8O3 + 1.54CO2 + 1.3C2H5OH +0.036H2O
Determine the biomass (MW= 23.74) yield coefficient Yx/s

TLS Online TPP Program

#Question id: 19486

#Section 4: Fundamentals of Biological Engineering

The growth of S.cerevisiae on glucose under anaerobic conditions can be described by the following reaction:
C6H12O6 + aNH3 → 0.59 CH1.64N0.16O0.52 (biomass) + 0.43 C3H8O3 + 1.54CO2 + 1.3C2H5OH + 0.036H2
and determine the product yield coefficient Y etoh/s and determine coefficient a.

TLS Online TPP Program

#Question id: 19487

#Section 4: Fundamentals of Biological Engineering

What is the yield coefficient if the initial substrate concentration is 20 g/l and biomass is 0.2 g/l. The substrate is then consumed and produces 6.0 g/l of biomass?