The kLa of a small bubble column (2 l) has been measured as 20 h-1 at an airflow of 4 l/m in. If the rate of oxygen uptake by a culture of Catharanthus roseus is 0.2 mmol O2/g dry weight-h and if the critical oxygen concentration must be above 10% of saturation (about 8 mg/l), what is the maximum concentration of cells that can be maintained in the reactor?

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#Question id: 150

#Section 2: General Biology

How do the pKa values of an ionizable side chain compare when the amino acid is free versus when it is in a polypeptide chain?

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#Question id: 14784

#Section 1: Engineering Mathematics

Ten points are marked on a straight line and 11 points are marked on another straight line. If any three points are chosen, what is the probability that it forms a triangle?

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#Question id: 10512

#Section 6: Plant, Animal and Microbial Biotechnology

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids alkaloids are derived from,

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#Question id: 14652

#Section 1: Engineering Mathematics

For what value of k will f(x) = x - kx^-1 have a relative maximum of x = -2

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#Question id: 14212

#Section 5: Bioprocess Engineering and Process Biotechnology

Which fig represents Kinetic patterns of non growth associated product formation