TLS Online TPP Program
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TLS Online TPP Program
#Question id: 15649
#Section 4: Fundamentals of Biological Engineering
A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g DCW)−1 h−1 is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s−1 for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L−1). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately
TLS Online TPP Program
#Question id: 15650
#Section 4: Fundamentals of Biological Engineering
For scaling up of a bioreactor, the following parameter is assumed to be constant
TLS Online TPP Program
#Question id: 15651
#Section 4: Fundamentals of Biological Engineering
Power number, also called Newton’s number, is defined as a dimensionless parameter relating to:
TLS Online TPP Program
#Question id: 15671
#Section 6: Plant, Animal and Microbial Biotechnology
The lag phase of the bacterial growth curve is marked by
TLS Online TPP Program
#Question id: 15672
#Section 6: Plant, Animal and Microbial Biotechnology
Late log phase of the bacterial growth curve
TLS Online TPP Program
#Question id: 15673
#Section 6: Plant, Animal and Microbial Biotechnology
A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?