To obtain a 100 Kg of 40 % N2 solution, how much nitrogen must be added to a 20% nitrogen solution?

TLS Online TPP Program

#Question id: 3929

#Section 3: Genetics, Cellular and Molecular Biology

The product of the lacZ gene is __.

TLS Online TPP Program

#Question id: 5152

#General Aptitude

If the product 4864×9 P 2 is divisible by 12, the value of P is :

TLS Online TPP Program

#Question id: 14366

#Section 5: Bioprocess Engineering and Process Biotechnology

0.1 mg of a quaternary structured enzyme (Mr 486 000) with four active sites converts 48 mirormol substrate/10 sec. Calculate molecular activity (min^-1), catalytic centre activity (min^-1). - 

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#Question id: 380

#Section 4: Fundamentals of Biological Engineering

The Henderson-Hasselbalch equation:

TLS Online TPP Program

#Question id: 14257

#Section 5: Bioprocess Engineering and Process Biotechnology

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?