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: 34

#Section 2: General Biology

Which of the following is true of any (S)-enantiomer?

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#Question id: 15608

#Section 6: Plant, Animal and Microbial Biotechnology

Melanins are light-absorbing biopolymers useful as topical sunscreens, sunlight-protective coatings for plastics, etc. Which gene is used for producing melanin. 

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#Question id: 7456

#General Aptitude

How many times the hands of a clock will be in vertically opposite Directions from 10 AM to 10 PM.

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#Question id: 1944

#Section 2: General Biology

The antiphospholipid syndrome is associated with:

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#Question id: 27053

#Section 4: Fundamentals of Biological Engineering

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