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TLS Online TPP Program

#Question id: 14239

A 200-1itre stirred fermenter contains a batch culture of Bacillus subtilis bacteria at 28⁰C Air at 20⁰C is pumped into the vessel at a rate of 1 vvm; (vvm stands for volume of gas per volume of liquid per minute). The average pressure in the fermenter is 1 atm. The volumetric flow rate of off-gas from the fermenter is measured as 189 l min-1. The exit gas stream is analysed for oxygen and is found to contain 20.1% 02. The dissolved-oxygen concentration in the broth is measured using an oxygen electrode as 52% air saturation. The solubility of oxygen in the fermentation broth at 28⁰C and 1 atm air pressure is 7.8 x 10-3 kg m-3. Calculate the oxygen transfer rate_____________

#Section 5: Bioprocess Engineering and Process Biotechnology
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TLS Online TPP Program

#Question id: 10546

#Section 6: Plant, Animal and Microbial Biotechnology

Given below are certain statements regarding plant-pathogen interactions: which one of the following is incorrect?
TLS Online TPP Program

#Question id: 10547

#Section 6: Plant, Animal and Microbial Biotechnology

Which of the following responses are incorrect for closing of stomata?
TLS Online TPP Program

#Question id: 10548

#Section 6: Plant, Animal and Microbial Biotechnology

flg22-elicited response is dependent on the presence of the LRR receptor-like kinase, what will be the causes of mutant form of LRR receptor-like kinase FLS2?
TLS Online TPP Program

#Question id: 10549

#Section 6: Plant, Animal and Microbial Biotechnology

Following are the list of some of the molecular “danger signals” (column I) and its characteristics (column II)                                                                                         

Column IColumn II
a) MAMPsi) produce from the pathogen molecules support their ability to successfully colonize their host and gain nutritional benefits
b) DAMPsii) A plant response to insect herbivores involve both a wound response and the recognition of certain compounds abundant in the insect’s saliva or regurgitant
c) Effectorsiii) are conserved among a specific class of microorganisms such as chitin for fungi, flagella for bacteria
d) Elicitoriv) molecules secrete from the damaging plant by herbivory such as Prosystemin

Which of the following is the correct match between the signals and their respective mechanism?
TLS Online TPP Program

#Question id: 10550

#Section 6: Plant, Animal and Microbial Biotechnology

Plants, in turn, evolved a second line of defense that recognize these intracellular effectors and trigger defense responses to render them harmless. As a result, plants possess a second type of immunity called,
TLS Online TPP Program

#Question id: 10551

#Section 6: Plant, Animal and Microbial Biotechnology

plants possess a second type of immunity mediated by a set of highly specific intracellular receptors known as nucleotide binding site–leucine rich repeat (NBS–LRR) receptors. How NBS–LRRs become activated,