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TLS Online TPP Program

#Question id: 15499

Growth yield coefficient of microbes is defined as

#Section 4: Fundamentals of Biological Engineering
  1. amount of substrate consumed/amount of cell mass formed
  2. specific growth rate/specific rate of substrate utilization
  3. specific growth rate/specific rate of product formation
  4. specific rate of substrate utilization/ specific rate product formation.
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TLS Online TPP Program

#Question id: 27321

#Section 5: Bioprocess Engineering and Process Biotechnology

An organism exhibits Monod growth with the following growth parameters, µm= 0.6 h-1 & Ks = 4 g/l. The specific growth rate, µ, of the organism at a substrate concentration of 2 g/l would be:
TLS Online TPP Program

#Question id: 14298

#Section 5: Bioprocess Engineering and Process Biotechnology

A two-stage chemostat system is used for production of secondary metabolite. The volume of each reactor is 0.5 m3; the flow rate of feed is 50 l h- 1. Mycelial growth occurs in the first reactor; the second reactor is used for product synthesis. The concentration of substrate in the feed is 10 gl-1. Kinetic and yield parameters for the organism are:

                                                            

Assume that product synthesis is negligible in the first reactor and growth is negligible in the second reactor. What is the overall substrate conversion?

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TLS Online TPP Program

#Question id: 15494

#Section 4: Fundamentals of Biological Engineering

Assuming that cells convert two-thirds (w/w) of the substrate to biomass, the stoichiometric coefficient (1 only) for glucose utilisation for the following reaction is
TLS Online TPP Program

#Question id: 27232

#Section 3: Genetics, Cellular and Molecular Biology

Name the pyrimidine base which is found in RNA but not in DNA?
TLS Online TPP Program

#Question id: 27474

#Section 5: Bioprocess Engineering and Process Biotechnology

When NDa <<1, the overall reaction is controlled by