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TLS Online TPP Program

#Question id: 12515

The most widely used techniques allows detection of as little as 10^13 g ABA by

#Unit 6. System Physiology – Plant
  1. microarray technique
  2. patch clamp technique
  3. Gas chromatography
  4. pressure probe technique
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TLS Online TPP Program

#Question id: 31763

#Unit 12. Biochemical Engineering

In a bioprocess mainly producing cell biomass, if the microbial cell yield has halved, what would be the rate of substrate consumption to maintain the same rate of cell mass production?
TLS Online TPP Program

#Question id: 31766

#Unit 12. Biochemical Engineering

Sugarcane molasses containing 50% sucrose, 1 % invert sugars, 18% water and 31 % other solids is mixed with corn steep liquor containing 2.5% invert sugars, 50% water and 47.5% other solids to produce a diluted sugar mixture containing 2% invert sugars. 125 kg corn steep liquor and 45 kg molasses are fed into the mixing tank. How much water should be added to the mixing tank to produce the desired diluted sugar mixture?
TLS Online TPP Program

#Question id: 31767

#Unit 12. Biochemical Engineering

A bacteria l culture, with the molecular formula - C4.4 H7.3 01.2 N0.86 is cultivated under aerobic conditions with hexadecane (C16H34) as substrate. The growth can be described by equation: C16H34 + 16.28O2 + 1.42NH3 ➔ 1.65C4.4  H7.3O1.2 N0.86 + 8.74CO2 + 13.11 H2O. Assuming 100% conversion, the yield of cell mass from hexadecane will be
TLS Online TPP Program

#Question id: 31769

#Unit 12. Biochemical Engineering

An airlift bioreactor uses
TLS Online TPP Program

#Question id: 31773

#Unit 12. Biochemical Engineering

A strain of E coli is cultured in a 15 m3 mechanically stirred bioreactor. Under the operating conditions, the value of kLa is 0.17 s-1. Oxygen solubility in the broth is 8x 10-3 kgm -3 . If the specific rate of O2 uptake is 12.5 mmoles.g-1 .h-1, what is the maximum possible cell concentration?
TLS Online TPP Program

#Question id: 31774

#Unit 12. Biochemical Engineering

A bioreactor of volume 1 m3 is operated continuously under steady state with inlet substrate concentration of 10 Kg.m3 . The organism being cultivated has µm = 0.30 h-1 and saturation constant (Ks) = 0.5 g.l- 1. The feed flow rate required to achieve 90% conversion of the substrate will be