Which of the following molecules are NOT used by tumor associated macrophages to generate an anti-inflammatory environment within a tumor?

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#Question id: 14402

#Section 5: Bioprocess Engineering and Process Biotechnology

Baby hamster kidney cells are immobilised in alginate beads. The average particle diameter is 5 mm. Rate of oxygen consumption at a bulk concentration of 8 x 10 ^-3 kg 0 2 m ^-3 is 8.4 x 10 ^-5 kg s^- 1 m^-3 catalyst. The effective diffusivity of oxygen in the beads is 1.88 x 10^ -9 m 2 s^- 1. Assume that the oxygen concentration at the surface of the catalyst is equal to the bulk concentration, and that oxygen uptake follows zero-order kinetics. calculate the observable Thiele modulus. 

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#Question id: 14403

#Section 5: Bioprocess Engineering and Process Biotechnology

Invertase is immobilised in ion-exchange resin of average diameter 1 mm. The amount of enzyme in the beads is measured by protein assay as 0.05 kg m ^-3. 20 cm ^3 beads are packed into a small column reactor; 75 ml sucrose solution at a concentration of 16 mM is pumped rapidly through the bed. In another reactor an identical quantity of free enzyme is mixed into the same volume of sucrose solution. Assume the kinetic parameters for free and immobilised enzyme are equal: K,,, is 8.8 mM and the turnover number is 2.4 x 10 gmol glucose (g enzyme)-'s^-1. The effective diffusivity of sucrose in the ion-exchange resin is 2 x 10^-6cm2s 4. What is the rate of reaction by free enzyme? 

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#Question id: 14404

#Section 5: Bioprocess Engineering and Process Biotechnology

Ultrafiltration is used to filtrate molecules of size 

TLS Online TPP Program

#Question id: 14405

#Section 5: Bioprocess Engineering and Process Biotechnology

If frequency adopted risk of contamination is 1 in 1000. For unsterile broth which having 10^11 viable organism then calculate the del factor? 

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#Question id: 14406

#Section 2: General Biology

Some members of the genus Proteus, as well as other genera, can lose their cell walls and swell into irregularly shaped cells called as 

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#Question id: 14407

#Section 2: General Biology

Most gram-negative bacteria are not as susceptible to penicillin as gram-positive bacteria are because