A continuous process is set up for treatment of wastewater. Each day, 10⁵ kg cellulose and 10³ kg bacteria enter in the feed stream, while 10⁴ kg cellulose and 1.5 x 10⁴ kg bacteria leave in the effluent. The rate of cellulose digestion by the bacteria is 7 x 10⁴ kg d^-1. The rate of bacterial growth is 2 x 10⁴ kg d^-1 ; the rate of cell death by lysis is 5 x 10² kg d^-1. Write balances for cellulose and bacteria in the system.

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#Question id: 14261

#Section 5: Bioprocess Engineering and Process Biotechnology

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. If Yp/s is 0.02 g IA/g glu, determine IA concentration in the effluent.

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TLS Online TPP Program

#Question id: 2682

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

DNA fingerprinting recognizes the differences in

TLS Online TPP Program

#Question id: 1279

#Section 3: Genetics, Cellular and Molecular Biology

A tight junction is made up of which of the following proteins?

a. tricellulin                                                     b. occludin

c. claudin                                                         d. connexins

TLS Online TPP Program

#Question id: 15182

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which of the following types of effect are responsible for lowering the efficiency of electrophoresis?

TLS Online TPP Program

#Question id: 27185

#Section 5: Bioprocess Engineering and Process Biotechnology

The reaction rate is defined as the rate at which the concentration of the reactants___with time or the concentration of products ___ with time.