C. roseus cells immobilized in Ca-alginate beads of diameter 0.5 mm are used for production of indole alkaloids (IA) in a fluidized-bed bioreactor. The rate limiting nutrient is glucose and no intraparticle diffusion limitations exist. Use the following data: Flow rate of the feed: Q = 1 l/h, Glucose in the feed: So = 30 g/l, Plant Cell Concentration: X = 6 g/l reac. The rate constant for IA formation: k = 5 d-1 (g/l)^-1 Ks = 0.4 g/l, Column diameter: Do = 0.15 m. Growth is negligible and Monod kinetics is valid. For 95% glucose conversion determine height of the column 

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#Question id: 27197

#Section 5: Bioprocess Engineering and Process Biotechnology

The rate constant of a first-order reaction is 6.93 x 10^-2min^-1. The half-life of the reaction is

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#Question id: 12993

#Section 2: General Biology

Out of these which of the following is true regarding the propensity of α-helix.

a. any amino acid which can take up desirable ϕ and ψ angle close to -57 and -47 will favour the formation of a α-helix

b. amino acid such a proline and glycine have lowest propensity will favour formation of α-helix.

c. if the resultant change in the value ΔΔG0 is positive then it will favour the formation of α-helix.

d. if the resultant change in the value ΔΔG0 is zero or close to zero then it will favour the formation of α-helix.

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#Question id: 17817

#Section 4: Fundamentals of Biological Engineering

Power number is expressed as

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#Question id: 1969

#Section 2: General Biology

A bacterium has elements on its surface that are resistant to lysozyme. If an individual is infected with this bacterium, what is a probable consequence?

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#Question id: 3307

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following conditions is not necessarily be fulfilled to trigger natural selection